|
Trischalis
Hampson
Type species: flava Hampson
= absconditana Walker, Sri Lanka.
The type species of the
genus is a junior synonym of absconditana Walker. The type locality was
blank in the original description but stated to be Sarawak (A.R. Wallace
material) by Hampson (1900). No other material from Borneo or other parts of
Sundaland has been located, nor has the species been taken in recent surveys.
Therefore it is likely that Hampson was mistaken.
The species have similar
forewing shape, coloration and venation to Cyclosiella, but the male
genitalia are very different. The valves are simple, laminar, without processes,
and symmetrical. The juxta is pocket-like, set between the valve bases. The two
species in Borneo have this juxta very large; they also have a much reduced,
almost vestigial uncus. The aedeagus is simple, the vesica unadorned or lightly
scobinate.
The female genitalia have
the ductus and neck to the pyriform bursa long and narrow; the new Bornean
species has an appendix bursae.
The genus is found
throughout the Indo-Australian tropics, its number being completed by iridescens
Rothschild and aureoplagiata Rothschild from New Guinea, and convoluta
Hampson from the Philippines.
<<Back
>>Forward <<Return
to Contents page
|
