| | Insects of Britain and Ireland: the pug moths (Lepidoptera-Geometridae) |
Haworthiaria Morris
Haworth’s Pug.
Adults. Posterior tibiae of males 4-spurred. Wingspan 16–18 mm. Forewings not noticeably elongate; the outer margin convexly curved; the costa slightly arched; apically blunt.
Forewings pale grey, somewhat whitish mixed, usually with a dark geniculate median line, the postmedian fascia curved, with curved (not angulated) darker grey striae, and usually a prominent pale subterminal line, the fringe inconspicuously chequered. Forewings without a discal mark. Forewing fringes somewhat chequered.
Hindwings coloured like the forewings; patterned similarly to the forewings; fairly conspicuously patterned; faintly transversely striated; without a clear discal mark; without a pale tornal spot; the fringes not conspicuously chequered.
The abdomen suffused pale reddish towards the base; plain; neither ringed nor banded nor white-based; laterally neither black-streaked nor black-spotted.
Genitalia. The male abdominal plate in the form of two separate sclerotized components. The bursa copulatrix with ornamentation conspicuously restricted in distribution (longitudinally banded); conspicuously spiny to only inconspicuously spiny (the spines small).
Early stages, ecology. Botanically specialised. Foodplants a vine; Ranunculaceae. The larvae found on Clematis vitalba and garden Clematis; feeding on in flower buds.
Months of appearance, distribution. Adults abroad June and July; larvae found August and September. South-east England, Central-southern England, South-west England, English Midlands, Northern England, Wales, and Ireland.
Special key characters. Forewings not reddish-tinged. Hindwings not predominantly green, yellow, or black; pale grey.
General comments. Becoming scarce?.
Illustrations. • E. haworthiata (Haworth’s Pug), with larva: Barrett. Eupithecia haworthiata and larva. From Barrett, Plate 389. • E. intricata arceuthata, E. intricata millieraria, E. plumbeolata, E. satyrata and E. haworthiata, with larvae: Barrett. Eupithecia. 1, E. intricata millieraria; 1a, E. intricata arceuthata. 2, E. satyrata with varieties. 3, E. plumbeolata. 4, E. haworthiata. Barrett Plate 389 (1904). • E. haworthiata (Haworth’s Pug), with similar Pugs: South. • E. haworthiata (Haworth’s Pug), with other Pugs: Swain. 1, Eupithecia tenuiata (Slender Pug); 2, E. inturbata (Maple Pug); 3, E. haworthiata (Haworth's Pug); 4, E. plumbeolata (Lead-coloured Pug); 5, E. irriguata (Marbled Pug); 6, E. exiguata (Mottled Pug); 7a & 7b, E. abietaria (Cloaked Pug); 8, E. pygmaeata (Marsh Pug); 9, E. linariata (Toadflax Pug); 10a-c, E. pulchellata (Foxglove Pug); 11, E. insignata (Pinion-spotted Pug); 12, E. valerianata (Valerian Pug). From Swain, 1961. • E. haworthiata (Haworth’s Pug), with other Pugs. 1, Eupithecia succenturiata (Bordered Pug); 2, E. exiguata (Mottled Pug); 3, E. haworthiata (Haworth's Pug); 4, E. insigniata (Pinion-spotted Pug); 5, E. expallidata (Bleached Pug). Adapted from Swain (1961). • E. haworthiata (Haworth’s Pug), with other Pugs: Newman. 1, Eupithecia inturbata (Maple Pug); 2, E. haworthiata (Haworth's Pug); 3. E. plumbeolata (Lead-coloured Pug); 4, E. linariata (Toadflax Pug); 5, E. pulchellata (Foxglove Pug); E. irriguata (Marbled Pug); 7, E. exiguata (Mottled Pug); 8, E. insigniata (Pinion-spotted Pug); 9, E. pygmaeata (Marsh Pug); 10, E. venosata venosata (Netted Pug); 11, E. trisignaria (Triple-spotted Pug); 12, E. cauchiata (Guenee's Pug); 13, E. abietaria (Cloaked Pug); 14, E. expallidata (Bleached Pug); 15, E. subfuscata (Grey Pug); 16, E. subumbrata (Shaded Pug); 17, E. simpliciata (Plain Pug); 18, E. virgaureata (Golden-rod Pug); 19, E. abbreviata (Brindled Pug); 20, E. pusillata pusillata (Juniper Pug); 21, E. centaureata (Lime-speck Pug); 22, Chloroclystis v-ata (V-Pug); 23, Anticollix sparsata (Dentated Pug). From Newman (1869).
We advise against extracting comparative information from the descriptions. This is much more easily achieved using the DELTA data files or the interactive key, which allows access to the character list, illustrations, 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. See also Guidelines for using data taken from Web publications.
Cite this publication as: ‘Watson, L., and Dallwitz, M.J. 2003 onwards. Insects of Britain and Ireland: the pug moths (Lepidoptera-Geometridae). Version: 27th July 2019. delta-intkey.com’.
