British Insects: Pug moths (Lepidoptera-Geometridae)
Consignata Borkhausen, consignaria Boisduval.
The Pinion-spotted Pug.
Adults. Thorax brown, with a white central stripe. Posterior tibiae of males 4-spurred. Wingspan 22–24 mm. Forewings distinctly elongate; the outer margin convexly curved; the costa arched.
Forewings at least towards the costa relatively conspicuously patterned; pale grey, greyish-ochreous or greyish-whitish, with a conspicuous dark anterior-basal patch and dark costal marks; the veins partly blackish; two pairs of blackish-edged whitish sinuate striae limiting the median band, the second posteriorly ferrugineous-edged; a ferrugineous-brown costal blotch before the first pair and another beyond the second, and between them three brown median striae ending in a dark fuscous costal suffusion. Forewings with a dark discal mark (this large, touching the dark fuscous costal suffusion). The discal mark shortly elongate; black and distinct. Forewing fringes conspicuously chequered.
Hindwings whitish-grey, with two pale grey posterior striae; patterned similarly to the forewings to less conspicuously patterned than the forewings; conspicuously patterned to rather plain; weakly dorsally and postmedianly transversely striated; with a clear discal mark to without a clear discal mark (this pale grey or indistinct); the fringes conspicuously chequered.
The abdomen dark fuscous, plain; neither ringed nor banded nor white-based; laterally neither black-streaked nor black-spotted.
Genitalia. The male abdominal plate in the form of a single sclerotized patch with a pair of apical extensions. The bursa copulatrix with ornamentation conspicuously restricted in distribution; conspicuously spiny.
Early stages, ecology. Botanically specialised. Foodplants woody-dicotyledonous; Rosaceae. The larvae found on apple and hawthorn; feeding on flowers and leafy shoots.
Months of appearance, distribution. Adults abroad May and June; larvae found June, July, and August. South-east England, Central-southern England, South-west England, and English Midlands (southern England and Norfolk).
Special key characters. Forewings without a postmedian line bearing arrow-like markings. Hindwings whitish, or pale grey.
Illustrations. • E. insigniata (Pinion-spotted Pug), with larva: Barrett. • E. insigniata (Pinion-spotted Pug), with other Pugs: South. • E. insigniata (Pinion-spotted Pug), with other Pugs: Swain. • E. insigniata (Pinion-spotted Pug), with other Pugs. • E. insigniata (Pinion-spotted Pug), with other Pugs: Newman.
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: Pug moths (Lepidoptera-Geometridae). Version: 29th December 2011. http://delta-intkey.com’.