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Chlorissa Stephens

Type species: viridata Linnaeus, Europe.

Synonyms: Aoshakuna Matsumura (type species sachalinensis Matsumura, Sakhalin I.); Phaiogramma Gumppenberg (type species faustinata Milličre, Spain).

This genus consists in S.E. Asia of species of similar facies and wing shape to Hemithea and Maxates, although many of the Palaearctic and African ones have the fasciation white, straight, without darker green edging. The male antennae are filiform, ciliate.

The genus is perhaps best defined on features of the male abdomen: there is usually a slender, central, sclerotised, digitate or acute process to the eighth sternite. The valves have the costa complexly ornamented, and the aedeagus vesica usually contains cornuti, both unusual features in the Hemitheiti. The valve also often has a digitate process from the sacculus. The third sternite usually bears a pair of setal patches. Coremata are present on the valves.

The female genitalia of C. aquamarina Hampson are illustrated. There is a rectangular flap from the lamella postvaginalis as in the next genus. The ductus is short, the ostium scobinate, and there is no signum in the bursa. The ovipostor lobes are of the modified type.

The genus is distributed through the Palaearctic and Africa, but reaches its south-eastern limits in Sundaland. There is one S. American species (Pitkin, in press). The larvae of Palaearctic species are mostly arboreal feeders from several plant families, though some herb feeders have also been noted (Nakajima & Sato, 1979).

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