Insects of Britain and Ireland: the genera of Lepidoptera-Geometridae
Adults. Antennae of males simple; shortly simply-ciliate. Face rough.
Wingspan 19–23 mm. The outer margin of the forewing convexly curved. Forewings predominantly green when fresh; usually green or green-tinged, but varying to whitish-greyish or pale brownish, especially when faded, or even dark fuscous (with melanism known); with a clear discal mark (this dark). Hindwings conspicuously patterned (matching the forewings); coloured like the forewings, usually incorporating greenish when fresh; with a clear discal mark to without a clear discal mark; transversely lined (the several darker striae sharp and wavy).
Vein 10 of the forewings arising independently of 9; arising out of 11 and anastomosing with 9 to form a simple areole. Hindwings exhibiting a tubular vein 5. Vein 5 of the hindwings arising from about the middle of the transverse vein, or arising from below the middle of the transverse vein (?). Vein 8 of the hindwings approximated to or anastomosed with the upper margin of the cell to the middle or beyond. Hindwing veins 6 and 7 stalked.
Posterior tibiae of males 4-spurred.
The abdomen conspicuously patterned (with a blackish sub-basal ring, an incomplete one, or sub-basal lateral spots).
Early stages. Larvae feeding on flowers of apple, pear, Prunus and Vaccinium.
British representation. 3 species; South-east England, Central-southern England, South-west England, English Midlands, Northern England, Southern Scotland, Northern Scotland, Wales, and Ireland. Living adults found May, June, and July. P. rectangulata (Green Pug), P. chloerata (Sloe Pug, only relatively recently distinguished from P. rectangulata in Britain), P. debiliata (Bilberry Pug).
General comments. The Green Pug is sometimes a pest in orchards.
Illustrations. • Pasiphila debiliata (Bilberry Pug) and P. rectangulata (Green Pug), with Chloroclystis v-ata: South. • Pasiphila debiliata (Bilberry Pug) and P. rectangulata (Green Pug), with Chloroclystis v-ata. • P. rectangulata: fore- and hindwing neuration. • Forewing and hindwing neuration: P. rectangulata and other Geometridae.
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 genera of Lepidoptera-Geometridae. Version: 8th June 2016. delta-intkey.com’.