Insects of Britain and Ireland: the genera of Lepidoptera-Geometridae
Calliclystis; excluding Pasiphila Meyrick.
Adults. Antennae of males simple; shortly simply-ciliate. Face rough.
Wingspan 18–22 mm. The outer margin of the forewing convexly curved. Forewings predominantly green when fresh; dull green, striated darker; the second fascia blackish on the dorsum, the median band anteriorly angulated and partially blackish, posteriorly twice-angulated and blacker in the upper half, the upper angle constituting a characteristic black V; with a clear discal mark (this dark, but submerged in the blackening of the median band in its vicinity). Hindwings plain; pale grey, with obscurely darker striae; without a clear discal mark; transversely lined (the several darker lines faint).
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 black basal and sub-basal rings).
Early stages. Larvae feeding on flowers of Clematis, various Compositae, etc. (polyphagous).
British representation. 1 species; South-east England, Central-southern England, South-west England, English Midlands, Northern England, Southern Scotland, Wales, and Ireland. Living adults found May, June, and July. C. v-ata (The V-pug).
Illustrations. • C. v-ata (V-pug), with Eupithecia, Pasiphila and Anticollix: Newman. • Pasiphila debiliata, Pasiphila rectangulata, C. v-ata.
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’.