| Insects of Britain and Ireland: the families of
Diptera | 
|
L. Watson and M. J.
Dallwitz
Conventional key
If you are
serious about identification, you should use the interactive key. It is far superior, with flexible
choice of characters, character notes and illustrations, error tolerance, full
taxon descriptions, and taxon illustrations.
| 1(0). | - Antennae
‘simple’ (basic structure filiform, moniliform or linear, the
segments more or less all alike; not evidently ‘reduced’ or
‘modified’) ... 2
- Antennae
‘modified’ (not filiform, variously reduced and/or complicated, with
markedly differentiated segments)... 82
|
| 2(1). |
- Thorax with the dorsal suture just in front of the wing bases continuous
across the middle ... 3
- Thorax without a
continuous dorsal suture... 7
|
| 3(2). |
- The dorsal suture deeply V-shaped ... 4
- The
dorsal suture deeply U-shaped ... Ptychopteridae
- The dorsal suture neither V-shaped nor U-shaped
... Cylindrotomidae
|
| 4(3). |
- The legs readily shed ... 5
- The legs not
readily shed... 6
|
| 5(4). |
- The costa extending around the entire wing
... Tipulidae
- The costa not extending around the entire wing
... Limoniidae
|
| 6(4). |
- The costa extending around the entire wing
... Trichoceridae
- The costa not extending around the entire wing
... Pediciidae
|
| 7(2). |
- Posterior division of pronotum with one or more long bristles ... 8
- Posterior division of pronotum without long
bristles... 40
|
| 8(7). |
- Antennae long and threadlike ... 9
- Antennae
short and stout... 24
|
| 9(8). |
- The costa extending around the entire wing ... 10
- The costa not extending around the entire
wing... 14
|
| 10(9). |
- stilt-legged (legs long and thin) ... 11
-
not stilt-legged (legs of about average length and thickness)... 13
|
| 11(10). |
- Eyes asymmetric, nearly or quite connected above the antennae; the larvae
terrestrial ... Cecidomyiidae
- Eyes rounded, well separated; the larvae aquatic... 12
|
| 12(11). |
- The maxillary palps porrect ... Culicidae
- The maxillary palps drooping
... Dixidae
|
| 13(10). |
- Eyes asymmetric, nearly or quite connected above the antennae; mouthparts
of adults functional ... Thaumaleidae
- Eyes rounded, well separated; mouthparts of adults non-functional
... Psychodidae
|
| 14(9). |
- Ocelli present ... 15
- Ocelli
absent... 21
|
| 15(14). |
- Media and cubitus veins connected via a cross vein or by a fusion
... 16
- Media and cubitus veins not connected by
a cross-vein or a fusion... 18
|
| 16(15). |
- Wings with a discal cell; wings patterned
... Anisopodidae
- Wings without a discal cell; wings unpatterned... 17
|
| 17(16). |
- Eyes asymmetric, nearly or quite connected above the antennae; not
stilt-legged (legs of about average length and thickness); tibiae without
spurs ... Scatopsidae
- Eyes rounded, well separated; stilt-legged (legs long and thin); tibiae
spurred ... Ditomyiidae
|
| 18(15). |
- Wing veins reaching the margin up to 6 ... 19
- Wing veins reaching the margin 7 to 8
... Scatopsidae
- Wing veins reaching the margin 9 to 11... 20
- Wing veins reaching the margin 12 or more
... Mycetophilidae
|
| 19(18). |
- stilt-legged (legs long and thin); tibiae spurred
... Sciaridae
- not stilt-legged (legs of about average length and thickness); tibiae
without spurs ... Scatopsidae
|
| 20(18). |
- Wings with a discal cell; wing vein 7 falling short of the wing margin
... Anisopodidae
- Wings without a discal cell; wing vein 7 reaching the wing margin
... Mycetophilidae
|
| 21(14). |
- stilt-legged (legs long and thin) ... 22
-
not stilt-legged (legs of about average length and thickness)... 23
|
| 22(21). |
- Mandibles present ... Chaoboridae
- Mandibles absent ... Chironomidae
|
| 23(21). |
- Sub-costa reaching the costa independently of vein 1
... Simuliidae
- Sub-costa terminating blind
... Ceratopogonidae
|
| 24(8). |
- Ocelli present ... 25
- Ocelli
absent... 32
|
| 25(24). |
- hairy bodied ... 26
- not hairy
bodied... 29
|
| 26(25). |
- Wings with a discal cell; wings patterned
... Anisopodidae
- Wings without a discal cell; wings unpatterned... 27
|
| 27(26). |
- stilt-legged (legs long and thin) ... 28
-
not stilt-legged (legs of about average length and thickness)
... Bibionidae
|
| 28(27). |
- Eyes asymmetric, nearly or quite connected above the antennae; the costa
extending around the entire wing ... Cecidomyiidae
- Eyes rounded, well separated; the costa not extending around the entire wing
... Ditomyiidae
|
| 29(25). |
- Wings with a discal cell; wings patterned
... Anisopodidae
- Wings without a discal cell; wings unpatterned... 30
|
| 30(29). |
- Eyes asymmetric, nearly or quite connected above the antennae ... 31
- Eyes rounded, well separated
... Ditomyiidae
|
| 31(30). |
- The costa extending around the entire wing; sub-costa absent or only
dubiously identifiable; stilt-legged (legs long and thin)
... Cecidomyiidae
- The costa not extending around the entire wing; sub-costa apparent and at
least partially free of vein 1; not stilt-legged (legs of about average length
and thickness) ... Scatopsidae
|
| 32(24). |
- stilt-legged (legs long and thin) ... 33
-
not stilt-legged (legs of about average length and thickness)... 37
|
| 33(32). |
- The costa extending around the entire wing ... 34
- The costa not extending around the entire
wing... 36
|
| 34(33). |
- Eyes asymmetric, nearly or quite connected above the antennae; the larvae
terrestrial ... Cecidomyiidae
- Eyes rounded, well separated; the larvae aquatic... 35
|
| 35(34). |
- The maxillary palps porrect ... Culicidae
- The maxillary palps drooping
... Dixidae
|
| 36(33). |
- Mandibles present ... Chaoboridae
- Mandibles absent ... Chironomidae
|
| 37(32). |
- The costa extending around the entire wing ... 38
- The costa not extending around the entire
wing... 39
|
| 38(37). |
- Eyes asymmetric, nearly or quite connected above the antennae; mouthparts
of adults functional ... Thaumaleidae
- Eyes rounded, well separated; mouthparts of adults non-functional
... Psychodidae
|
| 39(37). |
- Sub-costa reaching the costa independently of vein 1
... Simuliidae
- Sub-costa terminating blind
... Ceratopogonidae
|
| 40(7). |
- Ocelli present ... 41
- Ocelli
absent... 74
|
| 41(40). |
- Antennae long and threadlike ... 42
- Antennae short and stout... 57
|
| 42(41). |
- Media vein with a distinct basal section ... 43
- Media vein fused basally with the radius for a short
distance... 51
|
| 43(42). |
- Eyes asymmetric, nearly or quite connected above the antennae ... 44
- Eyes rounded, well separated... 47
|
| 44(43). |
- Wings with a discal cell; wings patterned
... Anisopodidae
- Wings without a discal cell; wings unpatterned... 45
|
| 45(44). |
- stilt-legged (legs long and thin) ... 46
-
not stilt-legged (legs of about average length and thickness)
... Scatopsidae
|
| 46(45). |
- The costa extending around the entire wing; sub-costa absent or only
dubiously identifiable ... Cecidomyiidae
- The costa not extending around the entire wing; sub-costa apparent and at
least partially free of vein 1
... Sciaridae
|
| 47(43). |
- Media and cubitus veins connected via a cross vein or by a fusion
... 48
- Media and cubitus veins not connected by
a cross-vein or a fusion... 50
|
| 48(47). |
- Wings with a discal cell; wings patterned
... Anisopodidae
- Wings without a discal cell; wings unpatterned... 49
|
| 49(48). |
- m-cu well before r-m ... Bolitophilidae
- m-cu and r-m cross-veins close
... Diadocidiidae
|
| 50(47). |
- Wings with a discal cell; wing vein 7 falling short of the wing margin
... Anisopodidae
- Wings without a discal cell; wing vein 7 reaching the wing margin
... Mycetophilidae
|
| 51(42). |
- Wing veins reaching the margin up to 6 ... 52
- Wing veins reaching the margin 7 to 8... 54
- Wing veins reaching the margin 9 to 11... 55
- Wing veins reaching the margin 12 or more
... Mycetophilidae
|
| 52(51). |
- stilt-legged (legs long and thin) ... 53
-
not stilt-legged (legs of about average length and thickness)
... Scatopsidae
|
| 53(52). |
- The costa extending around the entire wing; sub-costa absent or only
dubiously identifiable ... Cecidomyiidae
- The costa not extending around the entire wing; sub-costa apparent and at
least partially free of vein 1
... Sciaridae
|
| 54(51). |
- stilt-legged (legs long and thin); eyes rounded, well separated;
sub-costa reaching the costa independently of vein 1; tibiae spurred
... Keroplatidae
- not stilt-legged (legs of about average length and thickness); eyes
asymmetric, nearly or quite connected above the antennae; sub-costa
terminating blind; tibiae without spurs
... Scatopsidae
|
| 55(51). |
- Wings with a discal cell ... Anisopodidae
- Wings without a discal cell... 56
|
| 56(55). |
- Media and cubitus veins connected via a cross vein or by a fusion
... Keroplatidae
- Media and cubitus veins not connected by a cross-vein or a fusion
... Mycetophilidae
|
| 57(41). |
- Media vein with a distinct basal section ... 58
- Media vein fused basally with the radius for a short
distance... 67
|
| 58(57). |
- hairy bodied ... 59
- not hairy
bodied... 63
|
| 59(58). |
- Wings with a discal cell; wings patterned
... Anisopodidae
- Wings without a discal cell; wings unpatterned... 60
|
| 60(59). |
- stilt-legged (legs long and thin) ... 61
-
not stilt-legged (legs of about average length and thickness)
... Bibionidae
|
| 61(60). |
- Eyes asymmetric, nearly or quite connected above the antennae; the costa
extending around the entire wing ... Cecidomyiidae
- Eyes rounded, well separated; the costa not extending around the entire
wing... 62
|
| 62(61). |
- m-cu well before r-m ... Bolitophilidae
- m-cu and r-m cross-veins close
... Diadocidiidae
|
| 63(58). |
- Wings with a discal cell; wings patterned
... Anisopodidae
- Wings without a discal cell; wings unpatterned... 64
|
| 64(63). |
- Eyes asymmetric, nearly or quite connected above the antennae ... 65
- Eyes rounded, well separated... 66
|
| 65(64). |
- stilt-legged (legs long and thin); the costa extending around the entire
wing; sub-costa absent or only dubiously identifiable
... Cecidomyiidae
- not stilt-legged (legs of about average length and thickness); the costa
not extending around the entire wing; sub-costa apparent and at least
partially free of vein 1
... Scatopsidae
|
| 66(64). |
- m-cu well before r-m ... Bolitophilidae
- m-cu and r-m cross-veins close
... Diadocidiidae
|
| 67(57). |
- hairy bodied ... 68
- not hairy
bodied... 71
|
| 68(67). |
- Wings with a discal cell; wings patterned
... Anisopodidae
- Wings without a discal cell; wings unpatterned... 69
|
| 69(68). |
- stilt-legged (legs long and thin) ... 70
-
not stilt-legged (legs of about average length and thickness)
... Bibionidae
|
| 70(69). |
- Eyes asymmetric, nearly or quite connected above the antennae; the costa
extending around the entire wing; sub-costa absent or only dubiously
identifiable ... Cecidomyiidae
- Eyes rounded, well separated; the costa not extending around the entire
wing; sub-costa apparent and at least partially free of vein 1
... Keroplatidae
|
| 71(67). |
- Wings with a discal cell; wings patterned
... Anisopodidae
- Wings without a discal cell; wings unpatterned... 72
|
| 72(71). |
- Eyes asymmetric, nearly or quite connected above the antennae ... 73
- Eyes rounded, well separated
... Keroplatidae
|
| 73(72). |
- stilt-legged (legs long and thin); the costa extending around the entire
wing; sub-costa absent or only dubiously identifiable
... Cecidomyiidae
- not stilt-legged (legs of about average length and thickness); the costa
not extending around the entire wing; sub-costa apparent and at least
partially free of vein 1
... Scatopsidae
|
| 74(40). |
- The costa extending around the entire wing ... 75
- The costa not extending around the entire
wing... 79
|
| 75(74). |
- stilt-legged (legs long and thin) ... 76
-
not stilt-legged (legs of about average length and thickness)... 78
|
| 76(75). |
- Eyes asymmetric, nearly or quite connected above the antennae; the larvae
terrestrial ... Cecidomyiidae
- Eyes rounded, well separated; the larvae aquatic... 77
|
| 77(76). |
- The maxillary palps porrect ... Culicidae
- The maxillary palps drooping
... Dixidae
|
| 78(75). |
- Eyes asymmetric, nearly or quite connected above the antennae; mouthparts
of adults functional ... Thaumaleidae
- Eyes rounded, well separated; mouthparts of adults non-functional
... Psychodidae
|
| 79(74). |
- stilt-legged (legs long and thin) ... 80
-
not stilt-legged (legs of about average length and thickness)... 81
|
| 80(79). |
- Mandibles present ... Chaoboridae
- Mandibles absent ... Chironomidae
|
| 81(79). |
- Sub-costa reaching the costa independently of vein 1
... Simuliidae
- Sub-costa terminating blind
... Ceratopogonidae
|
| 82(1). |
- Wings exhibiting a ‘vena spuria’
... Syrphidae
- Wings without a ‘vena spuria’... 83
|
| 83(82). |
- The face in lateral view deeply excavated between the antennae and the
edge of the mouth ... 84
- The face in lateral
view not deeply excavated between the antennae and the edge of the
mouth... 87
|
| 84(83). |
- Hind tibiae with strong bristles in the basal 4/5 ... 85
- Hind tibiae without strong bristles in the basal
4/5... 86
|
| 85(84). |
- Wing vein 6 reaching the wing margin; the costa unbroken; the larvae
aquatic ... Coelopidae
- Wing vein 6 falling short of the wing margin; the costa with two breaks; the
larvae terrestrial
... Sphaeroceridae
|
| 86(84). |
- Wing vein 6 reaching the wing margin; the costa unbroken
... Dryomyzidae
- Wing vein 6 falling short of the wing margin; the costa with two breaks
... Sphaeroceridae
|
| 87(83). |
- The second antennal segment when viewed from the outside with a triangular
projection extending partway over the third and often with an upper and a
lower bristle ... Clusiidae
- The second antennal segment when viewed from the outside normal, with no
extension over the third... 88
|
| 88(87). |
- The hind tarsi having the basal three or four segments flattened and
dilated ... Platypezidae
- The hind tarsi normal (not flattened and dilated)... 89
|
| 89(88). |
- Hind tibiae with strong bristles in the basal 4/5 ... 90
- Hind tibiae without strong bristles in the basal
4/5... 188
|
| 90(89). |
- Thorax with the dorsal suture just in front of the wing bases continuous
across the middle ... 91
- Thorax without a
continuous dorsal suture... 146
|
| 91(90). |
- The back of the head rounded, with fine pale hairs below ... 92
- The back of the head markedly flattened above,
without fine pale hairs below... 119
|
| 92(91). |
- The post-humeral bristle located on the thorax higher than or level with
the pre-sutural bristle ... 93
- The post-humeral
bristle located lower on the thorax than the pre-sutural bristle... 106
|
| 93(92). |
- Mouthparts adapted for piercing ... 94
- Mouthparts non-piercing... 100
|
| 94(93). |
- Antennae 1 segmented ... Hippoboscidae
- Antennae 2 segmented... 95
- Antennae 3
segmented... 96
- Antennae 4 to 5 segmented
... Fanniidae
- Antennae 6 to 7 segmented
... Fanniidae
|
| 95(94). |
- winged; life style of species non-parasitic
... Fanniidae
- wingless; life style of species parasitic
... Nycteribiidae
|
| 96(94). |
- Wings exhibiting a sharp bend in vein 4 ... 97
- Wings without a sharp bend in vein 4... 98
|
| 97(96). |
- Hypopleural bristles present ... Tachinidae
- Hypopleural bristles absent
... Muscidae
|
| 98(96). |
- Wings with a well developed lower calypter ... 99
- Wings with the lower calypter much reduced or absent
... Scathophagidae
|
| 99(98). |
- Wings with a more or less closed subapical cell bounded by veins 3 and 4
... Muscidae
- Wings without a sub-apical cell
... Fanniidae
|
| 100(93). | - Wings exhibiting a sharp bend in vein 4 ... 101
- Wings without a sharp bend in vein 4... 103
|
| 101(100). | - Hypopleural bristles present ... 102
- Hypopleural bristles absent
... Muscidae
|
| 102(101). | - Postscutellum present and well developed
... Tachinidae
- Postscutellum absent or weakly developed
... Sarcophagidae
|
| 103(100). | - Wings with a well developed lower calypter ... 104
- Wings with the lower calypter much reduced or
absent ... Scathophagidae
|
| 104(103). | - Hypopleural bristles present
... Rhinophoridae
- Hypopleural bristles absent... 105
|
| 105(104). | - Wings with a more or less closed subapical cell bounded by
veins 3 and 4 ... Muscidae
- Wings without a sub-apical cell
... Fanniidae
|
| 107(106). | - Wings exhibiting a sharp bend in vein 4 ... 108
- Wings without a sharp bend in vein 4... 110
|
| 108(107). | - Hypopleural bristles present ... 109
- Hypopleural bristles absent
... Muscidae
|
| 109(108). | - Postscutellum present and well developed
... Tachinidae
- Postscutellum absent or weakly developed
... Calliphoridae
|
| 110(107). | - Mouthparts adapted for piercing ... 111
- Mouthparts non-piercing... 115
|
| 111(110). | - Wings with a more or less closed subapical cell bounded by
veins 3 and 4 ... Muscidae
- Wings without a sub-apical cell... 112
|
| 113(112). | - Wings with a well developed lower calypter
... Fanniidae
- Wings with the lower calypter much reduced or absent
... Scathophagidae
|
| 114(112). | - Wing vein 6 reaching the wing margin; life style of species
parasitic ... Hippoboscidae
- Wing vein 6 falling short of the wing margin; life style of species
non-parasitic ... Fanniidae
|
| 115(110). | - Wings with a well developed lower calypter ... 116
- Wings with the lower calypter much reduced or
absent ... Scathophagidae
|
| 116(115). | - Hypopleural bristles present
... Rhinophoridae
- Hypopleural bristles absent... 117
|
| 117(116). | - Wings with a more or less closed subapical cell bounded by
veins 3 and 4 ... Muscidae
- Wings without a sub-apical cell
... Fanniidae
|
| 118(106). | - Antennae 1 segmented
... Hippoboscidae
- Antennae 2 segmented
... Nycteribiidae
|
| 119(91). | - The post-humeral bristle located on the thorax higher than or
level with the pre-sutural bristle ... 120
- The
post-humeral bristle located lower on the thorax than the pre-sutural
bristle... 134
|
| 120(119). | - Mouthparts adapted for piercing ... 121
- Mouthparts non-piercing... 128
|
| 122(121). | - Wings exhibiting a sharp bend in vein 4 ... 123
- Wings without a sharp bend in vein 4... 124
|
| 123(122). | - Hypopleural bristles present
... Tachinidae
- Hypopleural bristles absent
... Muscidae
|
| 124(122). | - Wing vein 6 reaching the wing margin ... 125
- Wing vein 6 falling short of the wing
margin... 126
|
| 125(124). | - Antennae 1 segmented
... Hippoboscidae
- Antennae 2 segmented ... Anthomyiidae
- Antennae 3 segmented ... Anthomyiidae
- Antennae 4 to 5 segmented ... Anthomyiidae
- Antennae 6 to 7 segmented
... Anthomyiidae
|
| 126(124). | - Wings with a more or less closed subapical cell bounded by
veins 3 and 4 ... Muscidae
- Wings without a sub-apical cell
... Fanniidae
|
| 127(121). | - Antennae 1 segmented
... Hippoboscidae
- Antennae 2 segmented
... Nycteribiidae
|
| 128(120). | - Wings exhibiting a sharp bend in vein 4 ... 129
- Wings without a sharp bend in vein 4... 131
|
| 129(128). | - Hypopleural bristles present ... 130
- Hypopleural bristles absent
... Muscidae
|
| 130(129). | - Postscutellum present and well developed
... Tachinidae
- Postscutellum absent or weakly developed
... Sarcophagidae
|
| 131(128). | - Hypopleural bristles present
... Rhinophoridae
- Hypopleural bristles absent... 132
|
| 132(131). | - Wing vein 6 reaching the wing margin
... Anthomyiidae
- Wing vein 6 falling short of the wing margin... 133
|
| 133(132). | - Wings with a more or less closed subapical cell bounded by
veins 3 and 4 ... Muscidae
- Wings without a sub-apical cell
... Fanniidae
|
| 135(134). | - Wings exhibiting a sharp bend in vein 4 ... 136
- Wings without a sharp bend in vein 4... 138
|
| 136(135). | - Hypopleural bristles present ... 137
- Hypopleural bristles absent
... Muscidae
|
| 137(136). | - Postscutellum present and well developed
... Tachinidae
- Postscutellum absent or weakly developed
... Calliphoridae
|
| 138(135). | - Mouthparts adapted for piercing ... 139
- Mouthparts non-piercing... 142
|
| 139(138). | - Wing vein 6 reaching the wing margin ... 140
- Wing vein 6 falling short of the wing
margin... 141
|
| 140(139). | - Antennae 1 segmented
... Hippoboscidae
- Antennae 2 segmented ... Anthomyiidae
- Antennae 3 segmented ... Anthomyiidae
- Antennae 4 to 5 segmented ... Anthomyiidae
- Antennae 6 to 7 segmented
... Anthomyiidae
|
| 141(139). | - Wings with a more or less closed subapical cell bounded by
veins 3 and 4 ... Muscidae
- Wings without a sub-apical cell
... Fanniidae
|
| 142(138). | - Hypopleural bristles present
... Rhinophoridae
- Hypopleural bristles absent... 143
|
| 143(142). | - Wing vein 6 reaching the wing margin
... Anthomyiidae
- Wing vein 6 falling short of the wing margin... 144
|
| 144(143). | - Wings with a more or less closed subapical cell bounded by
veins 3 and 4 ... Muscidae
- Wings without a sub-apical cell
... Fanniidae
|
| 145(134). | - Antennae 1 segmented
... Hippoboscidae
- Antennae 2 segmented
... Nycteribiidae
|
| 146(90). | - Vibrissae present ... 147
- Vibrissae absent... 166
|
| 147(146). | - Ptilinal suture and lunule clearly defined ... 148
- Ptilinal suture absent or weakly defined and the
lunule often weakly defined or absent... 149
|
| 148(147). | - Post-vertical orbital bristles convergent; tibiae with a
dorsal pre-apical bristle ... Heleomyzidae
- Post-vertical orbital bristles divergent; tibiae without a dorsal pre-apical
bristle ... Piophilidae
|
| 149(147). | - Antennae 1 segmented ... Phoridae
- Antennae 2 segmented ... Xylomyidae
- Antennae 3 segmented... 150
- Antennae 4 to 5
segmented ... Xylomyidae
- Antennae 6 to 7 segmented ... Xylomyidae
- Antennae 8 to 10 segmented ... Thaumaleidae
- Antennae 11 to 15 segmented... 165
|
| 150(149). | - The costa extending around the entire wing ... 151
- The costa not extending around the entire
wing... 162
|
| 151(150). | - Mouthparts adapted for piercing ... 152
- Mouthparts non-piercing... 157
|
| 152(151). | - Wings with the fourth posterior cell open ... 153
- Wings with the fourth posterior cell
closed... 155
|
| 153(152). | - Antennae having the terminal segment annulated
... Xylophagidae
- Antennae with a non-annulated terminal segment... 154
|
| 154(153). | - Feet with a triple pad beneath the tarsal claws
... Rhagionidae
- Feet without a triple pad
... Therevidae
|
| 155(152). | - Feet with a triple pad beneath the tarsal claws ... 156
- Feet without a triple pad
... Therevidae
|
| 156(155). | - Antennae having the terminal segment annulated; not
stilt-legged (legs of about average length and thickness)
... Xylomyidae
- Antennae with a non-annulated terminal segment; stilt-legged (legs long and
thin) ... Rhagionidae
|
| 157(151). | - Wings with the fourth posterior cell open ... 158
- Wings with the fourth posterior cell
closed... 160
|
| 158(157). | - Antennae having the terminal segment annulated; feet with a
triple pad beneath the tarsal claws ... Xylophagidae
- Antennae with a non-annulated terminal segment; feet without a triple
pad... 159
|
| 159(158). | - Wings with 7 cells between vein 3 and the anal cell;
sub-costa joining vein 1 more or less where it joins the costa; life style of
species parasitic; the larvae parasitic
... Bombyliidae
- Wings with 8 cells between vein 3 and the anal cell; sub-costa reaching the
costa independently of vein 1; life style of species non-parasitic; the larvae
predatory ... Therevidae
|
| 160(157). | - Antennae having the terminal segment annulated; feet with a
triple pad beneath the tarsal claws ... Xylomyidae
- Antennae with a non-annulated terminal segment; feet without a triple
pad... 161
|
| 161(160). | - Wings with 7 cells between vein 3 and the anal cell;
sub-costa joining vein 1 more or less where it joins the costa; life style of
species parasitic; the larvae parasitic
... Bombyliidae
- Wings with 8 cells between vein 3 and the anal cell; sub-costa reaching the
costa independently of vein 1; life style of species non-parasitic; the larvae
predatory ... Therevidae
|
| 162(150). | - Wings with a more or less closed subapical cell bounded by
veins 3 and 4 ... 163
- Wings without a
sub-apical cell... 164
|
| 163(162). | - Antennae aristate; wing vein 3 not forked; life style of
species parasitic; the larvae acephalic; the pupae enclosed within a puparium
... Pipunculidae
- Antennae not aristate; wing vein 3 distally forked; life style of species
non-parasitic; the larvae hemicephalic; the pupae without a puparium
... Scenopinidae
|
| 164(162). | - Wings with a discal cell; the pupae without a puparium
... Empididae
- Wings without a discal cell; the pupae enclosed within a puparium
... Lonchopteridae
|
| 165(149). | - Eyes asymmetric, nearly or quite connected above the
antennae; not stilt-legged (legs of about average length and thickness); the
costa extending around the entire wing
... Thaumaleidae
- Eyes rounded, well separated; stilt-legged (legs long and thin); the costa
not extending around the entire wing
... Chaoboridae
|
| 166(146). | - Antennae having the terminal segment annulated ... 167
- Antennae with a non-annulated terminal
segment... 172
|
| 167(166). | - The fork of wing vein 3 broad, its lower branch reaching the
wing margin well below the apex ... 168
- The
fork of wing vein 3 narrow, its lower branch reaching the wing margin near the
apex... 169
|
| 168(167). | - Ocelli present; the costa not extending around the entire
wing; tibiae without spurs ... Stratiomyidae
- Ocelli absent; the costa extending around the entire wing; tibiae spurred
... Tabanidae
|
| 169(167). | - Wings with the fourth posterior cell open ... 170
- Wings with the fourth posterior cell
closed... 171
|
| 170(169). | - The costa extending around the entire wing
... Xylophagidae
- The costa not extending around the entire wing
... Stratiomyidae
|
| 171(169). | - The costa extending around the entire wing
... Xylomyidae
- The costa not extending around the entire wing
... Stratiomyidae
|
| 172(166). | - Antennae 1 segmented ... Phoridae
- Antennae 2 segmented ... Acroceridae
- Antennae 3 segmented... 173
- Antennae 8 to 10
segmented ... Thaumaleidae
- Antennae 11 to 15 segmented... 187
|
| 173(172). | - The costa extending around the entire wing ... 174
- The costa not extending around the entire
wing... 182
|
| 174(173). | - Mouthparts adapted for piercing ... 175
- Mouthparts non-piercing... 180
|
| 175(174). | - The top of the head with a marked depression between the
eyes, within which the ocellar triangle projects ... 176
- The top of the head with no marked depression
between the eyes... 178
|
| 176(175). | - Feet with a triple pad beneath the tarsal claws ... 177
- Feet without a triple pad
... Asilidae
|
| 177(176). | - The larvae saprophagous
... Athericidae
- The larvae predatory
... Rhagionidae
|
| 178(175). | - Feet with a triple pad beneath the tarsal claws ... 179
- Feet without a triple pad
... Therevidae
|
| 179(178). | - The larvae saprophagous
... Athericidae
- The larvae predatory
... Rhagionidae
|
| 180(174). | - Feet with a triple pad beneath the tarsal claws; the larvae
aquatic ... Athericidae
- Feet without a triple pad; the larvae terrestrial... 181
|
| 181(180). | - Sub-costa reaching the costa independently of vein 1; wings
with 8 cells between vein 3 and the anal cell; life style of species
non-parasitic; the larvae predatory ... Therevidae
- Sub-costa joining vein 1 more or less where it joins the costa; wings with 7
cells between vein 3 and the anal cell; life style of species parasitic; the
larvae parasitic ... Bombyliidae
|
| 182(173). | - Wings with a discal cell ... 183
- Wings without a discal cell... 185
|
| 183(182). | - Wings with a more or less closed subapical cell bounded by
veins 3 and 4 ... 184
- Wings without a
sub-apical cell ... Empididae
|
| 184(183). | - Antennae aristate; wing vein 3 not forked; life style of
species parasitic; the larvae acephalic; the pupae enclosed within a puparium
... Pipunculidae
- Antennae not aristate; wing vein 3 distally forked; life style of species
non-parasitic; the larvae hemicephalic; the pupae without a puparium
... Scenopinidae
|
| 185(182). | - Eyes asymmetric, nearly or quite connected above the
antennae; mouthparts of adults non-functional; the leading edge veins markedly
stronger than the rest; life style of species parasitic
... Acroceridae
- Eyes rounded, well separated; mouthparts of adults functional; the leading
edge veins not noticeably stronger than the rest; life style of species
non-parasitic... 186
|
| 186(185). | - Wings with a closed anal cell; the pupae without a puparium
... Dolichopodidae
- Wings without a closed anal cell; the pupae enclosed within a puparium
... Lonchopteridae
|
| 187(172). | - Eyes asymmetric, nearly or quite connected above the
antennae; not stilt-legged (legs of about average length and thickness); the
costa extending around the entire wing
... Thaumaleidae
- Eyes rounded, well separated; stilt-legged (legs long and thin); the costa
not extending around the entire wing
... Chaoboridae
|
| 188(89). | - Vibrissae present ... 189
- Vibrissae absent... 369
|
| 189(188). | - Ptilinal suture and lunule clearly defined ... 190
- Ptilinal suture absent or weakly defined and the
lunule often weakly defined or absent... 352
|
| 190(189). | - The third antennal segment elongated ... 191
- The third antennal segment not
elongated... 219
|
| 191(190). | - Thorax with the dorsal suture just in front of the wing bases
continuous across the middle; thorax with well defined posterior calli
... 192
- Thorax without a continuous dorsal
suture; thorax without well defined posterior calli... 193
|
| 192(191). | - Mouthparts of adults functional
... Rhinophoridae
- Mouthparts of adults non-functional
... Oestridae
|
| 193(191). | - Post-vertical orbital bristles present ... 194
- Post-vertical orbital bristles absent... 212
|
| 194(193). | - Wing venation complete, in the sense of exhibiting 1st and
2nd basal, anal and discal cells ... 195
- Wing
venation incomplete, in the sense of lacking one or more of the
cells... 204
|
| 195(194). | - Wing vein 6 present ... 196
- Wing vein 6 absent... 203
|
| 196(195). | - Wing vein 6 reaching the wing margin ... 197
- Wing vein 6 falling short of the wing
margin... 200
|
| 197(196). | - The anal cell extending more than halfway to the wing margin;
life style of species parasitic ... Conopidae
- The anal cell extending less than halfway to the wing margin; life style of
species non-parasitic... 198
|
| 198(197). | - The costa unbroken ... 199
- The costa with one break
... Heleomyzidae
- The costa with two breaks
... Campichoetidae
|
| 199(198). | - Post-vertical orbital bristles convergent
... Heleomyzidae
- Post-vertical orbital bristles parallel
... Dryomyzidae
- Post-vertical orbital bristles divergent
... Dryomyzidae
|
| 200(196). | - Post-vertical orbital bristles convergent ... 201
- Post-vertical orbital bristles parallel
... Campichoetidae
- Post-vertical orbital bristles divergent... 202
|
| 201(200). | - Tibiae with a dorsal pre-apical bristle; the costa with two
breaks ... Campichoetidae
- Tibiae without a dorsal pre-apical bristle; the costa with one break
... Tethinidae
|
| 202(200). | - The costa unbroken ... Sepsidae
- The costa with one break
... Lonchaeidae, Canacidae
- The costa with two breaks
... Campichoetidae
|
| 203(195). | - Tibiae with a dorsal pre-apical bristle
... Campichoetidae
- Tibiae without a dorsal pre-apical bristle
... Milichiidae
|
| 204(194). | - Wing vein 4 very short, extending little beyond the end of
the first basal cell ... 205
- Wing vein 4
extending far beyond the end of the first basal cell... 208
|
| 205(204). | - Wings with a closed anal cell ... 206
- Wings without a closed anal cell... 207
|
| 206(205). | - The anal cell extending more than halfway to the wing margin;
the costa unbroken; life style of species parasitic
... Conopidae
- The anal cell extending less than halfway to the wing margin; the costa with
two breaks; life style of species non-parasitic
... Campichoetidae
|
| 207(205). | - Sub-costa apparent and at least partially free of vein 1;
life style of species parasitic ... Carnidae
- Sub-costa absent or only dubiously identifiable; life style of species
non-parasitic ... Camillidae
|
| 208(204). | - Wings with a closed anal cell ... 209
- Wings without a closed anal cell... 211
|
| 209(208). | - The anal cell extending more than halfway to the wing margin;
life style of species parasitic ... Conopidae
- The anal cell extending less than halfway to the wing margin; life style of
species non-parasitic... 210
|
| 210(209). | - The costa unbroken ... Sepsidae
- The costa with two breaks
... Campichoetidae
|
| 211(208). | - Post-vertical orbital bristles convergent; sub-costa absent
or only dubiously identifiable; the costa with two breaks
... Camillidae
- Post-vertical orbital bristles divergent; sub-costa apparent and at least
partially free of vein 1; the costa unbroken
... Asteiidae
|
| 212(193). | - winged ... 213
- wingless
... Braulidae
|
| 213(212). | - Wing vein 4 very short, extending little beyond the end of
the first basal cell ... 214
- Wing vein 4
extending far beyond the end of the first basal cell... 216
|
| 214(213). | - Wings with a closed anal cell ... 215
- Wings without a closed anal cell
... Carnidae
|
| 215(214). | - The anal cell extending more than halfway to the wing margin;
the costa unbroken; life style of species parasitic
... Conopidae
- The anal cell extending less than halfway to the wing margin; the costa with
two breaks; life style of species non-parasitic
... Campichoetidae
|
| 216(213). | - Wings with a closed anal cell ... 217
- Wings without a closed anal cell
... Ephydridae
|
| 217(216). | - The anal cell extending more than halfway to the wing margin;
life style of species parasitic ... Conopidae
- The anal cell extending less than halfway to the wing margin; life style of
species non-parasitic... 218
|
| 218(217). | - The costa with one break
... Aulacigastridae
- The costa with two breaks
... Campichoetidae
|
| 219(190). | - The front femora with a short stout spine beneath which is
readily distinguishable from the other bristles ... 220
- The front femora without a conspicuous spine
beneath... 288
|
| 220(219). | - The legs with brown and yellow bands ... 221
- The legs without brown and yellow bands... 258
|
| 221(220). | - Thorax with the dorsal suture just in front of the wing bases
continuous across the middle; thorax with well defined posterior calli
... 222
- Thorax without a continuous dorsal
suture; thorax without well defined posterior calli... 223
|
| 222(221). | - Mouthparts of adults functional
... Rhinophoridae
- Mouthparts of adults non-functional
... Oestridae
|
| 223(221). | - Post-vertical orbital bristles present ... 224
- Post-vertical orbital bristles absent... 251
|
| 224(223). | - Antennal arista characteristically, conspicuously forked at
the tip ... Drosophilidae
- Antennal arista not forked at the tip... 225
|
| 225(224). | - Wing vein 4 very short, extending little beyond the end of
the first basal cell ... 226
- Wing vein 4
extending far beyond the end of the first basal cell... 236
|
| 226(225). | - Wing venation complete, in the sense of exhibiting 1st and
2nd basal, anal and discal cells ... 227
- Wing
venation incomplete, in the sense of lacking one or more of the
cells... 233
|
| 227(226). | - Wings with a closed anal cell ... 228
- Wings without a closed anal cell
... Diastatidae
|
| 228(227). | - Wing vein 6 reaching the wing margin ... 229
- Wing vein 6 falling short of the wing
margin... 232
|
| 229(228). | - Wing vein 6 present ... 230
- Wing vein 6 absent
... Milichiidae
|
| 230(229). | - Wings with a more or less closed subapical cell bounded by
veins 3 and 4; the anal cell extending more than halfway to the wing margin;
life style of species parasitic ... Conopidae
- Wings without a sub-apical cell; the anal cell extending less than halfway
to the wing margin; life style of species non-parasitic... 231
|
| 231(230). | - Post-vertical orbital bristles convergent
... Heleomyzidae
- Post-vertical orbital bristles parallel
... Dryomyzidae
- Post-vertical orbital bristles divergent
... Dryomyzidae
|
| 232(228). | - Wing vein 6 present
... Tethinidae, Anthomyzidae
- Wing vein 6 absent ... Milichiidae
|
| 233(226). | - Sub-costa apparent and at least partially free of vein 1
... 234
- Sub-costa absent or only dubiously
identifiable ... Camillidae
|
| 234(233). | - Wings with a discal cell; wings with a closed anal cell
... 235
- Wings without a discal cell; wings
without a closed anal cell
... Carnidae
|
| 235(234). | - The anal cell extending more than halfway to the wing margin;
wing vein 6 reaching the wing margin; life style of species parasitic; the
larvae parasitic ... Conopidae
- The anal cell extending less than halfway to the wing margin; wing vein 6
falling short of the wing margin; life style of species non-parasitic; the
larvae phytophagous ... Anthomyzidae
|
| 236(225). | - Wing venation complete, in the sense of exhibiting 1st and
2nd basal, anal and discal cells ... 237
- Wing
venation incomplete, in the sense of lacking one or more of the
cells... 247
|
| 237(236). | - Wings with a closed anal cell ... 238
- Wings without a closed anal cell
... Diastatidae
|
| 238(237). | - Tibiae with a dorsal pre-apical bristle ... 239
- Tibiae without a dorsal pre-apical
bristle... 243
|
| 239(238). | - Wing vein 6 reaching the wing margin ... 240
- Wing vein 6 falling short of the wing
margin... 242
|
| 240(239). | - Wings with a more or less closed subapical cell bounded by
veins 3 and 4; the anal cell extending more than halfway to the wing margin;
life style of species parasitic ... Conopidae
- Wings without a sub-apical cell; the anal cell extending less than halfway
to the wing margin; life style of species non-parasitic... 241
|
| 241(240). | - Post-vertical orbital bristles convergent
... Heleomyzidae
- Post-vertical orbital bristles parallel
... Dryomyzidae
- Post-vertical orbital bristles divergent
... Dryomyzidae
|
| 242(239). | - Adults less than 4 mm long; the costa with one break
... Odiniidae
- Adults 4-8 mm long; the costa unbroken
... Sepsidae
|
| 243(238). | - Adults less than 4 mm long ... 244
- Adults 4-8 mm long... 245
- Adults 8-15 mm long
... Conopidae
- Adults 15 mm or more long
... Conopidae
|
| 244(243). | - Wing vein 6 present
... Tethinidae, Anthomyzidae
- Wing vein 6 absent ... Milichiidae
|
| 245(243). | - Wing vein 6 present ... 246
- Wing vein 6 absent
... Milichiidae
|
| 246(245). | - The costa unbroken ... Sepsidae
- The costa with one break
... Piophilidae
|
| 247(236). | - Wings with a discal cell; wings with a closed anal cell
... 248
- Wings without a discal cell; wings
without a closed anal cell... 250
|
| 248(247). | - Adults less than 4 mm long ... 249
- Adults 4-8 mm long
... Sepsidae
- Adults 8-15 mm long ... Conopidae
- Adults 15 mm or more long
... Conopidae
|
| 249(248). | - Tibiae with a dorsal pre-apical bristle; the larvae
mycophagous ... Odiniidae
- Tibiae without a dorsal pre-apical bristle; the larvae phytophagous
... Anthomyzidae
|
| 250(247). | - Post-vertical orbital bristles convergent; sub-costa absent
or only dubiously identifiable; the costa with two breaks
... Camillidae
- Post-vertical orbital bristles divergent; sub-costa apparent and at least
partially free of vein 1; the costa unbroken
... Asteiidae
|
| 251(223). | - winged ... 252
- wingless
... Braulidae
|
| 252(251). | - Wing vein 4 very short, extending little beyond the end of
the first basal cell ... 253
- Wing vein 4
extending far beyond the end of the first basal cell... 255
|
| 253(252). | - Wings with a discal cell; wings with a closed anal cell
... 254
- Wings without a discal cell; wings
without a closed anal cell
... Carnidae
|
| 254(253). | - The anal cell extending more than halfway to the wing margin;
wing vein 6 reaching the wing margin; life style of species parasitic; the
larvae parasitic ... Conopidae
- The anal cell extending less than halfway to the wing margin; wing vein 6
falling short of the wing margin; life style of species non-parasitic; the
larvae phytophagous ... Anthomyzidae
|
| 255(252). | - Wings with a discal cell ... 256
- Wings without a discal cell... 257
|
| 256(255). | - The anal cell extending more than halfway to the wing margin;
wing vein 6 reaching the wing margin; life style of species parasitic; the
larvae parasitic ... Conopidae
- The anal cell extending less than halfway to the wing margin; wing vein 6
falling short of the wing margin; life style of species non-parasitic; the
larvae phytophagous ... Anthomyzidae
|
| 257(255). | - Wings with a closed anal cell; the costa with one break
... Aulacigastridae
- Wings without a closed anal cell; the costa with two breaks
... Ephydridae
|
| 258(220). | - Thorax with the dorsal suture just in front of the wing bases
continuous across the middle; thorax with well defined posterior calli
... 259
- Thorax without a continuous dorsal
suture; thorax without well defined posterior calli... 260
|
| 259(258). | - Mouthparts of adults functional
... Rhinophoridae
- Mouthparts of adults non-functional
... Oestridae
|
| 260(258). | - Post-vertical orbital bristles present ... 261
- Post-vertical orbital bristles absent... 281
|
| 261(260). | - Antennal arista characteristically, conspicuously forked at
the tip ... Drosophilidae
- Antennal arista not forked at the tip... 262
|
| 262(261). | - Wing venation complete, in the sense of exhibiting 1st and
2nd basal, anal and discal cells ... 263
- Wing
venation incomplete, in the sense of lacking one or more of the
cells... 274
|
| 263(262). | - Wings with a closed anal cell ... 264
- Wings without a closed anal cell
... Diastatidae
|
| 264(263). | - Wing vein 6 present ... 265
- Wing vein 6 absent
... Milichiidae
|
| 265(264). | - Wing vein 6 reaching the wing margin ... 266
- Wing vein 6 falling short of the wing
margin... 269
|
| 266(265). | - Wings with a more or less closed subapical cell bounded by
veins 3 and 4; the anal cell extending more than halfway to the wing margin
... Conopidae
- Wings without a sub-apical cell; the anal cell extending less than halfway
to the wing margin... 267
|
| 267(266). | - Tibiae with a dorsal pre-apical bristle ... 268
- Tibiae without a dorsal pre-apical bristle
... Piophilidae
|
| 268(267). | - Post-vertical orbital bristles convergent
... Heleomyzidae
- Post-vertical orbital bristles parallel
... Dryomyzidae
- Post-vertical orbital bristles divergent
... Dryomyzidae
|
| 269(265). | - Post-vertical orbital bristles convergent
... Tethinidae, Anthomyzidae
- Post-vertical orbital bristles parallel
... Anthomyzidae
- Post-vertical orbital bristles divergent... 270
|
| 270(269). | - Tibiae with a dorsal pre-apical bristle ... 271
- Tibiae without a dorsal pre-apical
bristle... 272
|
| 271(270). | - The costa unbroken ... Sepsidae
- The costa with one break
... Canacidae
|
| 272(270). | - Adults less than 4 mm long
... Anthomyzidae
- Adults 4-8 mm long... 273
|
| 273(272). | - The costa unbroken ... Sepsidae
- The costa with one break
... Piophilidae
|
| 274(262). | - Wing vein 4 very short, extending little beyond the end of
the first basal cell ... 275
- Wing vein 4
extending far beyond the end of the first basal cell... 278
|
| 275(274). | - Sub-costa apparent and at least partially free of vein 1
... 276
- Sub-costa absent or only dubiously
identifiable ... Camillidae
|
| 276(275). | - Wings with a discal cell; wings with a closed anal cell
... 277
- Wings without a discal cell; wings
without a closed anal cell
... Carnidae
|
| 277(276). | - The anal cell extending more than halfway to the wing margin;
wing vein 6 reaching the wing margin; life style of species parasitic; the
larvae parasitic ... Conopidae
- The anal cell extending less than halfway to the wing margin; wing vein 6
falling short of the wing margin; life style of species non-parasitic; the
larvae phytophagous ... Anthomyzidae
|
| 278(274). | - Wings with a discal cell; wings with a closed anal cell
... 279
- Wings without a discal cell; wings
without a closed anal cell... 280
|
| 279(278). | - Adults less than 4 mm long
... Anthomyzidae
- Adults 4-8 mm long ... Sepsidae
- Adults 8-15 mm long ... Conopidae
- Adults 15 mm or more long
... Conopidae
|
| 280(278). | - Post-vertical orbital bristles convergent; sub-costa absent
or only dubiously identifiable; the costa with two breaks
... Camillidae
- Post-vertical orbital bristles divergent; sub-costa apparent and at least
partially free of vein 1; the costa unbroken
... Asteiidae
|
| 281(260). | - winged ... 282
- wingless
... Braulidae
|
| 282(281). | - Wing vein 4 very short, extending little beyond the end of
the first basal cell ... 283
- Wing vein 4
extending far beyond the end of the first basal cell... 285
|
| 283(282). | - Wings with a discal cell; wings with a closed anal cell
... 284
- Wings without a discal cell; wings
without a closed anal cell
... Carnidae
|
| 284(283). | - The anal cell extending more than halfway to the wing margin;
wing vein 6 reaching the wing margin; life style of species parasitic; the
larvae parasitic ... Conopidae
- The anal cell extending less than halfway to the wing margin; wing vein 6
falling short of the wing margin; life style of species non-parasitic; the
larvae phytophagous ... Anthomyzidae
|
| 285(282). | - Wings with a discal cell ... 286
- Wings without a discal cell... 287
|
| 286(285). | - The anal cell extending more than halfway to the wing margin;
wing vein 6 reaching the wing margin; life style of species parasitic; the
larvae parasitic ... Conopidae
- The anal cell extending less than halfway to the wing margin; wing vein 6
falling short of the wing margin; life style of species non-parasitic; the
larvae phytophagous ... Anthomyzidae
|
| 287(285). | - Wings with a closed anal cell; the costa with one break
... Aulacigastridae
- Wings without a closed anal cell; the costa with two breaks
... Ephydridae
|
| 288(219). | - The legs with brown and yellow bands ... 289
- The legs without brown and yellow bands... 324
|
| 289(288). | - Thorax with the dorsal suture just in front of the wing bases
continuous across the middle; thorax with well defined posterior calli
... 290
- Thorax without a continuous dorsal
suture; thorax without well defined posterior calli... 291
|
| 290(289). | - Mouthparts of adults functional
... Rhinophoridae
- Mouthparts of adults non-functional
... Oestridae
|
| 291(289). | - Tibiae with a dorsal pre-apical bristle ... 292
- Tibiae without a dorsal pre-apical
bristle... 301
|
| 292(291). | - Post-vertical orbital bristles present ... 293
- Post-vertical orbital bristles absent... 299
|
| 293(292). | - Antennal arista characteristically, conspicuously forked at
the tip ... Drosophilidae
- Antennal arista not forked at the tip... 294
|
| 294(293). | - Sub-costa reaching the costa independently of vein 1
... 295
- Sub-costa joining vein 1 more or less
where it joins the costa ... Odiniidae
- Sub-costa joining vein 1 well short of the costa
... Diastatidae
- Sub-costa terminating blind... 298
|
| 295(294). | - Wing vein 6 reaching the wing margin ... 296
- Wing vein 6 falling short of the wing margin
... Sepsidae
|
| 296(295). | - Wings with a more or less closed subapical cell bounded by
veins 3 and 4; the anal cell extending more than halfway to the wing margin;
life style of species parasitic ... Conopidae
- Wings without a sub-apical cell; the anal cell extending less than halfway
to the wing margin; life style of species non-parasitic... 297
|
| 297(296). | - Post-vertical orbital bristles convergent
... Heleomyzidae
- Post-vertical orbital bristles parallel
... Dryomyzidae
- Post-vertical orbital bristles divergent
... Dryomyzidae
|
| 298(294). | - Post-vertical orbital bristles convergent; wing vein 6
reaching the wing margin ... Heleomyzidae
- Post-vertical orbital bristles divergent; wing vein 6 falling short of the
wing margin ... Odiniidae
|
| 299(292). | - winged ... 300
- wingless
... Braulidae
|
| 300(299). | - Wings with a discal cell; the anal cell extending more than
halfway to the wing margin; the costa unbroken; life style of species
parasitic; the larvae parasitic ... Conopidae
- Wings without a discal cell; the anal cell extending less than halfway to
the wing margin; the costa with one break; life style of species
non-parasitic; the larvae saprophagous
... Aulacigastridae
|
| 301(291). | - Post-vertical orbital bristles present ... 302
- Post-vertical orbital bristles absent... 319
|
| 302(301). | - Wing vein 4 very short, extending little beyond the end of
the first basal cell ... 303
- Wing vein 4
extending far beyond the end of the first basal cell... 308
|
| 303(302). | - Wing venation complete, in the sense of exhibiting 1st and
2nd basal, anal and discal cells ... 304
- Wing
venation incomplete, in the sense of lacking one or more of the
cells... 306
|
| 304(303). | - Wing vein 6 present ... 305
- Wing vein 6 absent
... Milichiidae
|
| 305(304). | - Wings with a more or less closed subapical cell bounded by
veins 3 and 4; the anal cell extending more than halfway to the wing margin;
wing vein 6 reaching the wing margin; the costa unbroken; life style of
species parasitic ... Conopidae
- Wings without a sub-apical cell; the anal cell extending less than halfway
to the wing margin; wing vein 6 falling short of the wing margin; the costa
with one break; life style of species non-parasitic
... Tethinidae
|
| 306(303). | - Sub-costa apparent and at least partially free of vein 1;
life style of species parasitic ... 307
- Sub-costa absent or only dubiously identifiable;
life style of species non-parasitic
... Camillidae
|
| 307(306). | - Wings with a discal cell; wings with a more or less closed
subapical cell bounded by veins 3 and 4; wings with a closed anal cell; wing
vein 6 reaching the wing margin; the costa unbroken
... Conopidae
- Wings without a discal cell; wings without a sub-apical cell; wings without
a closed anal cell; wing vein 6 falling short of the wing margin; the costa
with two breaks ... Carnidae
|
| 308(302). | - Wing venation complete, in the sense of exhibiting 1st and
2nd basal, anal and discal cells ... 309
- Wing
venation incomplete, in the sense of lacking one or more of the
cells... 315
|
| 309(308). | - Wing vein 6 present ... 310
- Wing vein 6 absent
... Milichiidae
|
| 310(309). | - Sub-costa reaching the costa independently of vein 1
... 311
- Sub-costa joining vein 1 more or less
where it joins the costa ... Tethinidae
- Sub-costa joining vein 1 well short of the costa... 313
- Sub-costa terminating blind... 314
|
| 311(310). | - The anal cell extending more than halfway to the wing margin
... Conopidae
- The anal cell extending less than halfway to the wing margin... 312
|
| 312(311). | - The costa unbroken ... Sepsidae
- The costa with one break
... Piophilidae
|
| 313(310). | - Post-vertical orbital bristles convergent
... Tethinidae
- Post-vertical orbital bristles divergent
... Agromyzidae
|
| 314(310). | - Post-vertical orbital bristles convergent
... Tethinidae
- Post-vertical orbital bristles divergent
... Agromyzidae
|
| 315(308). | - Wings with a closed anal cell ... 316
- Wings without a closed anal cell... 318
|
| 316(315). | - Sub-costa reaching the costa independently of vein 1
... 317
- Sub-costa joining vein 1 well short of
the costa ... Agromyzidae
- Sub-costa terminating blind
... Agromyzidae
|
| 317(316). | - The anal cell extending more than halfway to the wing margin;
wing vein 6 reaching the wing margin; life style of species parasitic
... Conopidae
- The anal cell extending less than halfway to the wing margin; wing vein 6
falling short of the wing margin; life style of species non-parasitic
... Sepsidae
|
| 318(315). | - Post-vertical orbital bristles convergent; sub-costa absent
or only dubiously identifiable; the costa with two breaks
... Camillidae
- Post-vertical orbital bristles divergent; sub-costa apparent and at least
partially free of vein 1; the costa unbroken
... Asteiidae
|
| 319(301). | - winged ... 320
- wingless
... Braulidae
|
| 320(319). | - Wing vein 4 very short, extending little beyond the end of
the first basal cell ... 321
- Wing vein 4
extending far beyond the end of the first basal cell... 322
|
| 321(320). | - Wings with a discal cell; wings with a more or less closed
subapical cell bounded by veins 3 and 4; wings with a closed anal cell; wing
vein 6 reaching the wing margin; the costa unbroken
... Conopidae
- Wings without a discal cell; wings without a sub-apical cell; wings without
a closed anal cell; wing vein 6 falling short of the wing margin; the costa
with two breaks ... Carnidae
|
| 322(320). | - Wings with a closed anal cell ... 323
- Wings without a closed anal cell
... Ephydridae
|
| 323(322). | - Wings with a discal cell; the anal cell extending more than
halfway to the wing margin; the costa unbroken; life style of species
parasitic; the larvae parasitic ... Conopidae
- Wings without a discal cell; the anal cell extending less than halfway to
the wing margin; the costa with one break; life style of species
non-parasitic; the larvae saprophagous
... Aulacigastridae
|
| 324(288). | - Thorax with the dorsal suture just in front of the wing bases
continuous across the middle; thorax with well defined posterior calli
... 325
- Thorax without a continuous dorsal
suture; thorax without well defined posterior calli... 326
|
| 325(324). | - Mouthparts of adults functional
... Rhinophoridae
- Mouthparts of adults non-functional
... Oestridae
|
| 326(324). | - Post-vertical orbital bristles present ... 327
- Post-vertical orbital bristles absent... 347
|
| 327(326). | - Antennal arista characteristically, conspicuously forked at
the tip ... Drosophilidae
- Antennal arista not forked at the tip... 328
|
| 328(327). | - Wing venation complete, in the sense of exhibiting 1st and
2nd basal, anal and discal cells ... 329
- Wing
venation incomplete, in the sense of lacking one or more of the
cells... 340
|
| 329(328). | - Wings with a closed anal cell ... 330
- Wings without a closed anal cell
... Diastatidae
|
| 330(329). | - Wing vein 6 present ... 331
- Wing vein 6 absent
... Milichiidae
|
| 331(330). | - Wing vein 6 reaching the wing margin ... 332
- Wing vein 6 falling short of the wing
margin... 335
|
| 332(331). | - Wings with a more or less closed subapical cell bounded by
veins 3 and 4; the anal cell extending more than halfway to the wing margin
... Conopidae
- Wings without a sub-apical cell; the anal cell extending less than halfway
to the wing margin... 333
|
| 333(332). | - Tibiae with a dorsal pre-apical bristle ... 334
- Tibiae without a dorsal pre-apical bristle
... Piophilidae
|
| 334(333). | - Post-vertical orbital bristles convergent
... Heleomyzidae
- Post-vertical orbital bristles parallel
... Dryomyzidae
- Post-vertical orbital bristles divergent
... Dryomyzidae
|
| 335(331). | - Post-vertical orbital bristles convergent
... Tethinidae
- Post-vertical orbital bristles divergent... 336
|
| 336(335). | - Tibiae with a dorsal pre-apical bristle ... 337
- Tibiae without a dorsal pre-apical
bristle... 338
|
| 337(336). | - The costa unbroken ... Sepsidae
- The costa with one break
... Canacidae
|
| 338(336). | - Sub-costa reaching the costa independently of vein 1
... 339
- Sub-costa joining vein 1 well short of
the costa ... Agromyzidae
- Sub-costa terminating blind
... Agromyzidae
|
| 339(338). | - The costa unbroken ... Sepsidae
- The costa with one break
... Piophilidae
|
| 340(328). | - Wing vein 4 very short, extending little beyond the end of
the first basal cell ... 341
- Wing vein 4
extending far beyond the end of the first basal cell... 343
|
| 341(340). | - Sub-costa apparent and at least partially free of vein 1;
life style of species parasitic ... 342
- Sub-costa absent or only dubiously identifiable;
life style of species non-parasitic
... Camillidae
|
| 342(341). | - Wings with a discal cell; wings with a more or less closed
subapical cell bounded by veins 3 and 4; wings with a closed anal cell; wing
vein 6 reaching the wing margin; the costa unbroken
... Conopidae
- Wings without a discal cell; wings without a sub-apical cell; wings without
a closed anal cell; wing vein 6 falling short of the wing margin; the costa
with two breaks ... Carnidae
|
| 343(340). | - Wings with a closed anal cell ... 344
- Wings without a closed anal cell... 346
|
| 344(343). | - Sub-costa reaching the costa independently of vein 1
... 345
- Sub-costa joining vein 1 well short of
the costa ... Agromyzidae
- Sub-costa terminating blind
... Agromyzidae
|
| 345(344). | - The anal cell extending more than halfway to the wing margin;
wing vein 6 reaching the wing margin; life style of species parasitic
... Conopidae
- The anal cell extending less than halfway to the wing margin; wing vein 6
falling short of the wing margin; life style of species non-parasitic
... Sepsidae
|
| 346(343). | - Post-vertical orbital bristles convergent; sub-costa absent
or only dubiously identifiable; the costa with two breaks
... Camillidae
- Post-vertical orbital bristles divergent; sub-costa apparent and at least
partially free of vein 1; the costa unbroken
... Asteiidae
|
| 347(326). | - winged ... 348
- wingless
... Braulidae
|
| 348(347). | - Wing vein 4 very short, extending little beyond the end of
the first basal cell ... 349
- Wing vein 4
extending far beyond the end of the first basal cell... 350
|
| 349(348). | - Wings with a discal cell; wings with a more or less closed
subapical cell bounded by veins 3 and 4; wings with a closed anal cell; wing
vein 6 reaching the wing margin; the costa unbroken
... Conopidae
- Wings without a discal cell; wings without a sub-apical cell; wings without
a closed anal cell; wing vein 6 falling short of the wing margin; the costa
with two breaks ... Carnidae
|
| 350(348). | - Wings with a closed anal cell ... 351
- Wings without a closed anal cell
... Ephydridae
|
| 351(350). | - Wings with a discal cell; the anal cell extending more than
halfway to the wing margin; the costa unbroken; life style of species
parasitic; the larvae parasitic ... Conopidae
- Wings without a discal cell; the anal cell extending less than halfway to
the wing margin; the costa with one break; life style of species
non-parasitic; the larvae saprophagous
... Aulacigastridae
|
| 352(189). | - Antennae 1 segmented ... Phoridae
- Antennae 2 segmented ... Xylomyidae
- Antennae 3 segmented... 353
- Antennae 4 to 5
segmented ... Xylomyidae
- Antennae 6 to 7 segmented ... Xylomyidae
- Antennae 8 to 10 segmented ... Thaumaleidae
- Antennae 11 to 15 segmented... 368
|
| 353(352). | - The costa extending around the entire wing ... 354
- The costa not extending around the entire
wing... 365
|
| 354(353). | - Mouthparts adapted for piercing ... 355
- Mouthparts non-piercing... 360
|
| 355(354). | - Wings with the fourth posterior cell open ... 356
- Wings with the fourth posterior cell
closed... 358
|
| 356(355). | - Antennae having the terminal segment annulated
... Xylophagidae
- Antennae with a non-annulated terminal segment... 357
|
| 357(356). | - Feet with a triple pad beneath the tarsal claws
... Rhagionidae
- Feet without a triple pad
... Therevidae
|
| 358(355). | - Feet with a triple pad beneath the tarsal claws ... 359
- Feet without a triple pad
... Therevidae
|
| 359(358). | - Antennae having the terminal segment annulated; not
stilt-legged (legs of about average length and thickness)
... Xylomyidae
- Antennae with a non-annulated terminal segment; stilt-legged (legs long and
thin) ... Rhagionidae
|
| 360(354). | - Wings with the fourth posterior cell open ... 361
- Wings with the fourth posterior cell
closed... 363
|
| 361(360). | - Antennae having the terminal segment annulated; feet with a
triple pad beneath the tarsal claws ... Xylophagidae
- Antennae with a non-annulated terminal segment; feet without a triple
pad... 362
|
| 362(361). | - Wings with 7 cells between vein 3 and the anal cell;
sub-costa joining vein 1 more or less where it joins the costa; life style of
species parasitic; the larvae parasitic
... Bombyliidae
- Wings with 8 cells between vein 3 and the anal cell; sub-costa reaching the
costa independently of vein 1; life style of species non-parasitic; the larvae
predatory ... Therevidae
|
| 363(360). | - Antennae having the terminal segment annulated; feet with a
triple pad beneath the tarsal claws ... Xylomyidae
- Antennae with a non-annulated terminal segment; feet without a triple
pad... 364
|
| 364(363). | - Wings with 7 cells between vein 3 and the anal cell;
sub-costa joining vein 1 more or less where it joins the costa; life style of
species parasitic; the larvae parasitic
... Bombyliidae
- Wings with 8 cells between vein 3 and the anal cell; sub-costa reaching the
costa independently of vein 1; life style of species non-parasitic; the larvae
predatory ... Therevidae
|
| 365(353). | - Wings with a more or less closed subapical cell bounded by
veins 3 and 4 ... 366
- Wings without a
sub-apical cell... 367
|
| 366(365). | - Antennae aristate; wing vein 3 not forked; life style of
species parasitic; the larvae acephalic; the pupae enclosed within a puparium
... Pipunculidae
- Antennae not aristate; wing vein 3 distally forked; life style of species
non-parasitic; the larvae hemicephalic; the pupae without a puparium
... Scenopinidae
|
| 367(365). | - Wings with a discal cell; the pupae without a puparium
... Empididae
- Wings without a discal cell; the pupae enclosed within a puparium
... Lonchopteridae
|
| 368(352). | - stilt-legged (legs long and thin); eyes rounded, well
separated; the costa not extending around the entire wing
... Chaoboridae
- not stilt-legged (legs of about average length and thickness); eyes
asymmetric, nearly or quite connected above the antennae; the costa extending
around the entire wing
... Thaumaleidae
|
| 369(188). | - Ptilinal suture and lunule clearly defined ... 370
- Ptilinal suture absent or weakly defined and the
lunule often weakly defined or absent... 504
|
| 370(369). | - stilt-legged (legs long and thin) ... 371
- not stilt-legged (legs of about average length
and thickness)... 374
|
| 371(370). | - Sub-costa reaching the costa independently of vein 1; wings
with a closed anal cell ... 372
- Sub-costa
joining vein 1 more or less where it joins the costa; wings without a closed
anal cell ... Stenomicridae
|
| 372(371). | - The hind femora thickened, with two rows of spines beneath
... Megamerinidae
- The hind femora not thickened with spines beneath as in
Megamerinidae... 373
|
| 373(372). | - The costa unbroken ... Micropezidae
- The costa with one break
... Tanypezidae
|
| 374(370). | - The third antennal segment elongated ... 375
- The third antennal segment not
elongated... 459
|
| 375(374). | - The legs with brown and yellow bands ... 376
- The legs without brown and yellow bands... 419
|
| 376(375). | - Thorax with the dorsal suture just in front of the wing bases
continuous across the middle; thorax with well defined posterior calli
... 377
- Thorax without a continuous dorsal
suture; thorax without well defined posterior calli... 378
|
| 377(376). | - Mouthparts of adults functional
... Rhinophoridae
- Mouthparts of adults non-functional
... Oestridae
|
| 378(376). | - Tibiae with a dorsal pre-apical bristle ... 379
- Tibiae without a dorsal pre-apical
bristle... 389
|
| 379(378). | - winged ... 380
- wingless
... Braulidae
|
| 380(379). | - Wing vein 6 reaching the wing margin ... 381
- Wing vein 6 falling short of the wing
margin... 384
|
| 381(380). | - The anal cell extending more than halfway to the wing margin
... Conopidae
- The anal cell extending less than halfway to the wing margin... 382
|
| 382(381). | - Life style of species parasitic ... 383
- Life style of species non-parasitic
... Dryomyzidae
|
| 383(382). | - On slugs and snails ... Sciomyzidae
- On millipedes ... Phaeomyiidae
|
| 384(380). | - Post-vertical orbital bristles convergent
... Lauxaniidae
- Post-vertical orbital bristles parallel
... Phaeomyiidae
- Post-vertical orbital bristles divergent... 385
|
| 385(384). | - Adults less than 4 mm long
... Acartophthalmidae
- Adults 4-8 mm long... 386
|
| 386(385). | - shining, black, rather hairy flies ... 387
- not shining black... 388
|
| 387(386). | - The costa unbroken ... Sepsidae
- The costa with one break
... Lonchaeidae
|
| 388(386). | - Life style of species parasitic
... Phaeomyiidae
- Life style of species non-parasitic
... Sepsidae
|
| 389(378). | - Adults less than 4 mm long ... 390
- Adults 4-8 mm long... 401
- Adults 8-15 mm long... 416
- Adults 15 mm or more long... 418
|
| 390(389). | - winged ... 391
- wingless
... Braulidae
|
| 391(390). | - Wing venation complete, in the sense of exhibiting 1st and
2nd basal, anal and discal cells ... 392
- Wing
venation incomplete, in the sense of lacking one or more of the
cells... 395
|
| 392(391). | - Wings with a closed anal cell ... 393
- Wings without a closed anal cell
... Periscelididae
|
| 393(392). | - Wing vein 6 present ... 394
- Wing vein 6 absent
... Milichiidae
|
| 394(393). | - The costa unbroken ... Chamaemyiidae
- The costa with one break
... Acartophthalmidae
|
| 395(391). | - Wing vein 4 very short, extending little beyond the end of
the first basal cell ... 396
- Wing vein 4
extending far beyond the end of the first basal cell... 397
|
| 396(395). | - The costa unbroken ... Periscelididae
- The costa with one break ... Chloropidae
- The costa with two breaks
... Carnidae
|
| 397(395). | - Post-vertical orbital bristles present ... 398
- Post-vertical orbital bristles absent... 400
|
| 398(397). | - The costa unbroken ... 399
- The costa with one break
... Chloropidae
|
| 399(398). | - Sub-costa joining vein 1 well short of the costa
... Asteiidae
- Sub-costa terminating blind
... Periscelididae
|
| 400(397). | - The costa with one break
... Chloropidae
- The costa with two breaks
... Ephydridae
|
| 401(389). | - Wing venation complete, in the sense of exhibiting 1st and
2nd basal, anal and discal cells ... 402
- Wing
venation incomplete, in the sense of lacking one or more of the
cells... 414
|
| 402(401). | - Wing vein 1 with hairs on its upper side ... 403
- Wing vein 1 bare... 406
|
| 403(402). | - Wings patterned ... Platystomatidae
- Wings unpatterned... 404
|
| 404(403). | - Wing vein 6 present ... 405
- Wing vein 6 absent
... Milichiidae
|
| 405(404). | - Sub-costa reaching the costa independently of vein 1; the
costa unbroken ... Sepsidae
- Sub-costa terminating blind; the costa with one break
... Psilidae
|
| 406(402). | - Sub-costa reaching the costa independently of vein 1
... 407
- Sub-costa joining vein 1 more or less
where it joins the costa ... Milichiidae
- Sub-costa joining vein 1 well short of the costa
... Milichiidae
- Sub-costa terminating blind... 412
|
| 407(406). | - shining, black, rather hairy flies ... 408
- not shining black... 409
|
| 408(407). | - The costa unbroken ... Sepsidae
- The costa with one break
... Lonchaeidae
|
| 409(407). | - Post-vertical orbital bristles present ... 410
- Post-vertical orbital bristles absent
... Opomyzidae
|
| 410(409). | - Wings patterned ... Pallopteridae
- Wings unpatterned... 411
|
| 411(410). | - Post-vertical orbital bristles convergent
... Chyromyidae
- Post-vertical orbital bristles divergent
... Sepsidae
|
| 412(406). | - Wing vein 6 present ... 413
- Wing vein 6 absent
... Milichiidae
|
| 413(412). | - The costa with one break ... Psilidae
- The costa with two breaks
... Tephritidae
|
| 414(401). | - Wings with a discal cell; wings with a closed anal cell
... Sepsidae
- Wings without a discal cell; wings without a closed anal cell... 415
|
| 415(414). | - The costa unbroken ... Asteiidae
- The costa with one break ... Chloropidae
- The costa with two breaks
... Ephydridae
|
| 416(389). | - Sub-costa reaching the costa independently of vein 1
... Conopidae
- Sub-costa joining vein 1 well short of the costa
... Asteiidae
- Sub-costa terminating blind... 417
|
| 417(416). | - The costa with one break ... Psilidae
- The costa with two breaks
... Tephritidae
|
| 418(389). | - Wings with a discal cell; wings with a more or less closed
subapical cell bounded by veins 3 and 4; wings with a closed anal cell;
sub-costa reaching the costa independently of vein 1; life style of species
parasitic ... Conopidae
- Wings without a discal cell; wings without a sub-apical cell; wings without
a closed anal cell; sub-costa joining vein 1 well short of the costa; life
style of species non-parasitic
... Asteiidae
|
| 419(375). | - Thorax with the dorsal suture just in front of the wing bases
continuous across the middle; thorax with well defined posterior calli
... 420
- Thorax without a continuous dorsal
suture; thorax without well defined posterior calli... 421
|
| 420(419). | - Mouthparts of adults functional
... Rhinophoridae
- Mouthparts of adults non-functional
... Oestridae
|
| 421(419). | - Tibiae with a dorsal pre-apical bristle ... 422
- Tibiae without a dorsal pre-apical
bristle... 433
|
| 422(421). | - winged ... 423
- wingless
... Braulidae
|
| 423(422). | - Wing vein 6 reaching the wing margin ... 424
- Wing vein 6 falling short of the wing
margin... 427
|
| 424(423). | - The anal cell extending more than halfway to the wing margin
... Conopidae
- The anal cell extending less than halfway to the wing margin... 425
|
| 425(424). | - Life style of species parasitic ... 426
- Life style of species non-parasitic
... Dryomyzidae
|
| 426(425). | - On slugs and snails ... Sciomyzidae
- On millipedes ... Phaeomyiidae
|
| 427(423). | - Post-vertical orbital bristles convergent
... Lauxaniidae
- Post-vertical orbital bristles parallel
... Phaeomyiidae
- Post-vertical orbital bristles divergent... 428
|
| 428(427). | - Adults less than 4 mm long
... Acartophthalmidae, Canacidae
- Adults 4-8 mm long... 429
- Adults 8-15 mm
long ... Canacidae
- Adults 15 mm or more long
... Canacidae
|
| 429(428). | - shining, black, rather hairy flies ... 430
- not shining black... 431
|
| 430(429). | - The costa unbroken ... Sepsidae
- The costa with one break
... Canacidae, Lonchaeidae
|
| 431(429). | - The costa unbroken ... 432
- The costa with one break
... Canacidae
|
| 432(431). | - Life style of species parasitic
... Phaeomyiidae
- Life style of species non-parasitic
... Sepsidae
|
| 433(421). | - Adults less than 4 mm long ... 434
- Adults 4-8 mm long... 441
- Adults 8-15 mm long... 456
- Adults 15 mm or more long... 458
|
| 434(433). | - winged ... 435
- wingless
... Braulidae
|
| 435(434). | - Wing venation complete, in the sense of exhibiting 1st and
2nd basal, anal and discal cells; wings with a discal cell; wings with a
closed anal cell ... 436
- Wing venation
incomplete, in the sense of lacking one or more of the cells; wings without a
discal cell; wings without a closed anal cell... 438
|
| 436(435). | - Wing vein 6 present ... 437
- Wing vein 6 absent
... Milichiidae
|
| 437(436). | - The costa unbroken ... Chamaemyiidae
- The costa with one break
... Acartophthalmidae
|
| 438(435). | - Wing vein 4 very short, extending little beyond the end of
the first basal cell ... 439
- Wing vein 4
extending far beyond the end of the first basal cell... 440
|
| 439(438). | - The costa with one break; life style of species non-parasitic
... Chloropidae
- The costa with two breaks; life style of species parasitic
... Carnidae
|
| 440(438). | - The costa unbroken ... Asteiidae
- The costa with one break ... Chloropidae
- The costa with two breaks
... Ephydridae
|
| 441(433). | - Wing venation complete, in the sense of exhibiting 1st and
2nd basal, anal and discal cells ... 442
- Wing
venation incomplete, in the sense of lacking one or more of the
cells... 454
|
| 442(441). | - Wing vein 1 with hairs on its upper side ... 443
- Wing vein 1 bare... 446
|
| 443(442). | - Wings patterned ... Platystomatidae
- Wings unpatterned... 444
|
| 444(443). | - Wing vein 6 present ... 445
- Wing vein 6 absent
... Milichiidae
|
| 445(444). | - Sub-costa reaching the costa independently of vein 1; the
costa unbroken ... Sepsidae
- Sub-costa terminating blind; the costa with one break
... Psilidae
|
| 446(442). | - Sub-costa reaching the costa independently of vein 1
... 447
- Sub-costa joining vein 1 more or less
where it joins the costa ... Milichiidae
- Sub-costa joining vein 1 well short of the costa
... Milichiidae
- Sub-costa terminating blind... 452
|
| 447(446). | - shining, black, rather hairy flies ... 448
- not shining black... 449
|
| 448(447). | - The costa unbroken ... Sepsidae
- The costa with one break
... Lonchaeidae
|
| 449(447). | - Post-vertical orbital bristles present ... 450
- Post-vertical orbital bristles absent
... Opomyzidae
|
| 450(449). | - Wings patterned ... Pallopteridae
- Wings unpatterned... 451
|
| 451(450). | - Post-vertical orbital bristles convergent
... Chyromyidae
- Post-vertical orbital bristles divergent
... Sepsidae
|
| 452(446). | - Wing vein 6 present ... 453
- Wing vein 6 absent
... Milichiidae
|
| 453(452). | - The costa with one break ... Psilidae
- The costa with two breaks
... Tephritidae
|
| 454(441). | - Wings with a discal cell; wings with a closed anal cell
... Sepsidae
- Wings without a discal cell; wings without a closed anal cell... 455
|
| 455(454). | - The costa unbroken ... Asteiidae
- The costa with one break ... Chloropidae
- The costa with two breaks
... Ephydridae
|
| 456(433). | - Sub-costa reaching the costa independently of vein 1
... Conopidae
- Sub-costa joining vein 1 well short of the costa
... Asteiidae
- Sub-costa terminating blind... 457
|
| 457(456). | - The costa with one break ... Psilidae
- The costa with two breaks
... Tephritidae
|
| 458(433). | - Wings with a discal cell; wings with a more or less closed
subapical cell bounded by veins 3 and 4; wings with a closed anal cell;
sub-costa reaching the costa independently of vein 1; life style of species
parasitic ... Conopidae
- Wings without a discal cell; wings without a sub-apical cell; wings without
a closed anal cell; sub-costa joining vein 1 well short of the costa; life
style of species non-parasitic
... Asteiidae
|
| 459(374). | - Thorax with the dorsal suture just in front of the wing bases
continuous across the middle; thorax with well defined posterior calli
... 460
- Thorax without a continuous dorsal
suture; thorax without well defined posterior calli... 461
|
| 460(459). | - Mouthparts of adults functional
... Rhinophoridae
- Mouthparts of adults non-functional
... Oestridae
|
| 461(459). | - Tibiae with a dorsal pre-apical bristle ... 462
- Tibiae without a dorsal pre-apical
bristle... 472
|
| 462(461). | - winged ... 463
- wingless
... Braulidae
|
| 463(462). | - Antennal arista characteristically, conspicuously forked at
the tip ... Drosophilidae
- Antennal arista not forked at the tip... 464
|
| 464(463). | - Wing vein 6 reaching the wing margin ... 465
- Wing vein 6 falling short of the wing
margin... 468
|
| 465(464). | - The anal cell extending more than halfway to the wing margin
... Conopidae
- The anal cell extending less than halfway to the wing margin... 466
|
| 466(465). | - Life style of species parasitic ... 467
- Life style of species non-parasitic
... Dryomyzidae
|
| 467(466). | - On slugs and snails ... Sciomyzidae
- On millipedes ... Phaeomyiidae
|
| 468(464). | - Post-vertical orbital bristles convergent
... Lauxaniidae
- Post-vertical orbital bristles parallel
... Phaeomyiidae
- Post-vertical orbital bristles divergent... 469
|
| 469(468). | - Adults less than 4 mm long
... Canacidae, Acartophthalmidae
- Adults 4-8 mm long... 470
- Adults 8-15 mm
long ... Canacidae
- Adults 15 mm or more long
... Canacidae
|
| 470(469). | - The costa unbroken ... 471
- The costa with one break
... Canacidae
|
| 471(470). | - Life style of species parasitic
... Phaeomyiidae
- Life style of species non-parasitic
... Sepsidae
|
| 472(461). | - winged ... 473
- wingless
... Braulidae
|
| 473(472). | - Wing venation complete, in the sense of exhibiting 1st and
2nd basal, anal and discal cells ... 474
- Wing
venation incomplete, in the sense of lacking one or more of the
cells... 495
|
| 474(473). | - Wing vein 1 with hairs on its upper side ... 475
- Wing vein 1 bare... 483
|
| 475(474). | - Sub-costa reaching the costa independently of vein 1
... 476
- Sub-costa joining vein 1 more or less
where it joins the costa... 480
- Sub-costa
joining vein 1 well short of the costa ... Milichiidae
- Sub-costa terminating blind... 481
|
| 476(475). | - Adults less than 4 mm long ... 477
- Adults 4-8 mm long... 478
- Adults 8-15 mm long... 479
- Adults 15 mm or more long
... Conopidae
|
| 477(476). | - The costa unbroken ... Chamaemyiidae
- The costa with one break
... Acartophthalmidae
|
| 478(476). | - The costa unbroken
... Sepsidae, Ulidiidae
- The costa with one break
... Platystomatidae
|
| 479(476). | - The anal cell extending more than halfway to the wing margin;
wing vein 6 reaching the wing margin; life style of species parasitic; the
larvae parasitic ... Conopidae
- The anal cell extending less than halfway to the wing margin; wing vein 6
falling short of the wing margin; life style of species non-parasitic; the
larvae saprophagous ... Ulidiidae
|
| 480(475). | - Wings with a closed anal cell; the costa with two breaks
... Milichiidae
- Wings without a closed anal cell; the costa unbroken
... Stenomicridae
|
| 481(475). | - Wings with a closed anal cell ... 482
- Wings without a closed anal cell
... Periscelididae
|
| 482(481). | - Wing vein 6 present; the costa with one break
... Psilidae
- Wing vein 6 absent; the costa with two breaks
... Milichiidae
|
| 483(474). | - Sub-costa reaching the costa independently of vein 1
... 484
- Sub-costa joining vein 1 more or less
where it joins the costa... 491
- Sub-costa
joining vein 1 well short of the costa ... Milichiidae
- Sub-costa terminating blind... 492
|
| 484(483). | - Adults less than 4 mm long ... 485
- Adults 4-8 mm long... 486
- Adults 8-15 mm long... 490
- Adults 15 mm or more long
... Conopidae
|
| 485(484). | - The costa unbroken ... Chamaemyiidae
- The costa with one break
... Acartophthalmidae
|
| 486(484). | - Post-vertical orbital bristles present ... 487
- Post-vertical orbital bristles absent
... Opomyzidae
|
| 488(487). | - The costa unbroken ... Ulidiidae
- The costa with one break
... Pallopteridae
|
| 489(487). | - Post-vertical orbital bristles convergent
... Chyromyidae
- Post-vertical orbital bristles parallel
... Ulidiidae
- Post-vertical orbital bristles divergent
... Sepsidae, Ulidiidae
|
| 490(484). | - The anal cell extending more than halfway to the wing margin;
wing vein 6 reaching the wing margin; life style of species parasitic; the
larvae parasitic ... Conopidae
- The anal cell extending less than halfway to the wing margin; wing vein 6
falling short of the wing margin; life style of species non-parasitic; the
larvae saprophagous ... Ulidiidae
|
| 491(483). | - Wings with a closed anal cell; the costa with two breaks
... Milichiidae
- Wings without a closed anal cell; the costa unbroken
... Stenomicridae
|
| 492(483). | - Wings with a closed anal cell ... 493
- Wings without a closed anal cell
... Periscelididae
|
| 493(492). | - Wing vein 6 present ... 494
- Wing vein 6 absent
... Milichiidae
|
| 494(493). | - The costa with one break ... Psilidae
- The costa with two breaks
... Tephritidae
|
| 495(473). | - Wing vein 4 very short, extending little beyond the end of
the first basal cell ... 496
- Wing vein 4
extending far beyond the end of the first basal cell... 498
|
| 496(495). | - The costa unbroken ... 497
- The costa with one break
... Chloropidae
- The costa with two breaks
... Carnidae
|
| 497(496). | - Sub-costa reaching the costa independently of vein 1
... Conopidae
- Sub-costa joining vein 1 more or less where it joins the costa
... Stenomicridae
- Sub-costa terminating blind
... Periscelididae
|
| 498(495). | - Wings with a closed anal cell ... 499
- Wings without a closed anal cell... 500
|
| 499(498). | - The anal cell extending more than halfway to the wing margin;
wing vein 6 reaching the wing margin; life style of species parasitic
... Conopidae
- The anal cell extending less than halfway to the wing margin; wing vein 6
falling short of the wing margin; life style of species non-parasitic
... Sepsidae
|
| 500(498). | - Post-vertical orbital bristles present ... 501
- Post-vertical orbital bristles absent... 503
|
| 501(500). | - The costa unbroken ... 502
- The costa with one break
... Chloropidae
|
| 502(501). | - Sub-costa joining vein 1 more or less where it joins the
costa ... Stenomicridae
- Sub-costa joining vein 1 well short of the costa
... Asteiidae
- Sub-costa terminating blind
... Periscelididae
|
| 503(500). | - The costa with one break
... Chloropidae
- The costa with two breaks
... Ephydridae
|
| 504(369). | - Antennae having the terminal segment annulated ... 505
- Antennae with a non-annulated terminal
segment... 510
|
| 505(504). | - The fork of wing vein 3 broad, its lower branch reaching the
wing margin well below the apex ... 506
- The
fork of wing vein 3 narrow, its lower branch reaching the wing margin near the
apex... 507
|
| 506(505). | - Ocelli present; the costa not extending around the entire
wing; tibiae without spurs ... Stratiomyidae
- Ocelli absent; the costa extending around the entire wing; tibiae spurred
... Tabanidae
|
| 507(505). | - Wings with the fourth posterior cell open ... 508
- Wings with the fourth posterior cell
closed... 509
|
| 508(507). | - The costa extending around the entire wing
... Xylophagidae
- The costa not extending around the entire wing
... Stratiomyidae
|
| 509(507). | - The costa extending around the entire wing
... Xylomyidae
- The costa not extending around the entire wing
... Stratiomyidae
|
| 510(504). | - Antennae 1 segmented ... Phoridae
- Antennae 2 segmented ... Acroceridae
- Antennae 3 segmented... 511
- Antennae 8 to 10
segmented ... Thaumaleidae
- Antennae 11 to 15 segmented... 526
|
| 511(510). | - The costa extending around the entire wing ... 512
- The costa not extending around the entire
wing... 520
|
| 512(511). | - Mouthparts adapted for piercing ... 513
- Mouthparts non-piercing... 518
|
| 513(512). | - The top of the head with a marked depression between the
eyes, within which the ocellar triangle projects ... 514
- The top of the head with no marked depression
between the eyes... 516
|
| 514(513). | - Feet with a triple pad beneath the tarsal claws ... 515
- Feet without a triple pad
... Asilidae
|
| 515(514). | - The larvae saprophagous
... Athericidae
- The larvae predatory
... Rhagionidae
|
| 516(513). | - Feet with a triple pad beneath the tarsal claws ... 517
- Feet without a triple pad
... Therevidae
|
| 517(516). | - The larvae saprophagous
... Athericidae
- The larvae predatory
... Rhagionidae
|
| 518(512). | - Feet with a triple pad beneath the tarsal claws; the larvae
aquatic ... Athericidae
- Feet without a triple pad; the larvae terrestrial... 519
|
| 519(518). | - Wings with 7 cells between vein 3 and the anal cell;
sub-costa joining vein 1 more or less where it joins the costa; life style of
species parasitic; the larvae parasitic
... Bombyliidae
- Wings with 8 cells between vein 3 and the anal cell; sub-costa reaching the
costa independently of vein 1; life style of species non-parasitic; the larvae
predatory ... Therevidae
|
| 520(511). | - Wings with a discal cell ... 521
- Wings without a discal cell... 523
|
| 521(520). | - Wings with a more or less closed subapical cell bounded by
veins 3 and 4 ... 522
- Wings without a
sub-apical cell ... Empididae
|
| 522(521). | - Antennae aristate; wing vein 3 not forked; life style of
species parasitic; the larvae acephalic; the pupae enclosed within a puparium
... Pipunculidae
- Antennae not aristate; wing vein 3 distally forked; life style of species
non-parasitic; the larvae hemicephalic; the pupae without a puparium
... Scenopinidae
|
| 523(520). | - Mouthparts of adults functional; the leading edge veins not
noticeably stronger than the rest; life style of species non-parasitic
... 524
- Mouthparts of adults non-functional;
the leading edge veins markedly stronger than the rest; life style of species
parasitic ... Acroceridae
|
| 524(523). | - Wings with a closed anal cell ... 525
- Wings without a closed anal cell
... Lonchopteridae
|
| 525(524). | - Wing vein 7 present; the larvae acephalic; the pupae enclosed
within a puparium ... Opetiidae
- Wing vein 7 absent; the larvae hemicephalic; the pupae without a puparium
... Dolichopodidae
|
| 526(510). | - stilt-legged (legs long and thin); eyes rounded, well
separated; the costa not extending around the entire wing
... Chaoboridae
- not stilt-legged (legs of about average length and thickness); eyes
asymmetric, nearly or quite connected above the antennae; the costa extending
around the entire wing
... Thaumaleidae
|
To view the illustrations with detailed captions, go
to the interactive key. This also offers full and
partial descriptions, diagnostic descriptions, differences and similarities
between taxa, lists of taxa exhibiting or lacking specified attributes, and
distributions of character states within any set of taxa.
Cite this
publication as: ‘Watson, L., and Dallwitz, M.J. 2003 onwards. Insects of
Britain and Ireland: the families of Diptera. Version: 9th April 2015. delta-intkey.com’.
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