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

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L. Watson and M. J. Dallwitz

Spargania Guenée

Adults. Antennae of males simple. Face rough.

Wingspan 29–33 mm. The outer margin of the forewing convexly curved. Forewings dark greyish-fuscous to blackish, slightly white-speckled; predominantly fuscous, or grey, or blackish; with a clear discal mark, or without a clear discal mark; without a median band. The outer margin of the hindwings smooth. Hindwings conspicuously patterned (with a dark, contrasty terminal band sometimes containing white spots, and a grey basal patch); white and light grey; with a clear discal mark; transversely lined (with a sharp postmedian line).

Vein 10 of the forewings arising independently of 9; arising independently, anastomosing with 11 and 9 to form a double 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.

British representation. 1 species; South-east England (very rare). Living adults found May and June, or August (double brooded). S. luctuata (White-banded Carpet).

Subfamily. Larentiinae.

Illustrations. • S. luctuata (White-banded Carpet), with other Larentiinae (‘Carpets’, ‘Pugs’, etc.): Kirby 51.

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.’.