British Insects: the Families of Diptera
British Insects: the Families of Diptera |
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Adult insects. Very small to small; not stilt-legged. Antennae 8–16 segmented (the segments not very distinct); ‘simple’ (short and compact). Antennae not aristate. Ocelli present; 3. Eyes meeting above the antennae. The maxillary palps 1 segmented, or 3–5 segmented; drooping. Vibrissae absent. Wings without a discal cell; without a sub-apical cell; without a closed anal cell. The costa unbroken. Sub-costa apparent; terminating blind. The leading edge veins markedly stronger than the rest. Wings with the lower calypter much reduced or absent. Tibiae without a dorsal pre-apical bristle.
Larvae and pupae. Larvae terrestrial; saprophagous, or coprophagous; eucephalic. Pupa without a puparium (but the normal pupa almost enclosed in the last larval skin).
Comments. Small to minute flies, often black.
Classification. Suborder Nematocera; Division Psychodomorpha; Superfamily Scatopsoidea.
British representation: Genera 16; 42 species.
Illustrations: • Aspistes, Fcookella and Scatopse (from Walker).
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. British insects: the families of Diptera. Version: 9th June 2008. http://delta-intkey.com’.
