Insects of Britain and Ireland: the genera of Lepidoptera-Geometridae

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L. Watson and M. J. Dallwitz

Aplasta Hübner

Adults. Antennae of males simple; simply-ciliate. Face smooth.

Wingspan 26–31 mm. Forewings 1.5–1.7 times as long as wide. The outer margin of the forewing convexly curved. Forewings light ochreous; without a clear discal mark. Hindwings conspicuously patterned to plain; light ochreous; not predominantly green, yellow, or black; without a clear discal mark; transversely lined (with one thin median, darker, sometimes reddish line), or without transverse lines.

Vein 10 of the forewings arising out of vein 9. Hindwings exhibiting a tubular vein 5. Vein 5 of the hindwings arising from well above the middle of the transverse vein. Vein 8 of the hindwings shortly anastomosed basally with the upper margin of the cell, thence rapidly diverging. Hindwing veins 6 and 7 stalked.

Early stages. Larvae feeding on Ononis. Pupae above the ground (in a cocoon spun amongst the leaves of the food-plant).

British representation. 1 species; South-east England (Kent). Living adults found May and June. A. ononaria (Rest Harrow).

Subfamily. Geometrinae.

General comments. Thorax glabrous beneath..

Illustrations. • Geometrinae (‘Emeralds’): Kirby 44 (part). • Geometrinae: Newman (1869).


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’.

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