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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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