Insects of Britain and Ireland: the genera of Lepidoptera-Geometridae
Adults. Antennae of males dentate to simple (stout, flatly sub-dentate); shortly, evenly simply-ciliate.
Wingspan 28–30 mm. The outer margin of the forewing slightly sigmoid-curved, or convexly curved. Forewings yellow, with fuscous to blackish spots and broken transverse bands; without a clear discal mark. Forewings of the male without a fovea. Hindwings very conspicuously patterned; yellow, with dark fuscous to blackish spots; predominantly yellow; with a clear discal mark; transversely lined (assuming median spots and a band towards the hind margin represent a median line).
Hindwings lacking a tubular vein 5. 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 separate.
Posterior tibiae of males 4-spurred.
Early stages. Larvae feeding on Stachys, Reseda.
British representation. 1 species; South-east England, Central-southern England, South-west England, English Midlands, Northern England, Southern Scotland, Northern Scotland, Wales, and Ireland (local). Living adults found May and June. P. macularia (Speckled Yellow).
Illustrations. • Pseudopanthera macularia (The Speckled Yellow, ab. quadrimaculata): B. Ent. 647. • Pseudopanthera macularia , ab. quadrimaculata: B. Ent. 647, legend+text. • Pseudopanthera macularia , ab. quadrimaculata: B. Ent. 647, text cont.. • Cepphis, Epione, Isturgia, Opisthograptis, Pachycnemia, Petrophora, Plagodis, Pseudopanthera: Newman. • Oenochrominae and Ennominae: Kirby 47. • Wing neuration: P. macularia 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’.