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Pseudidiochlora Gen.
n.
Type species: temburong
sp. n.
In appearance, species
of this genus resemble large Idiochlora species of the type with
translucent patches to the forewing (e.g. I. berwicki). The forewing
margins are irregular, slightly concave over the anterior half and wavy,
oblique, posterior to a central angle. The hindwings are tailed with another
slight concavity at the margin between veins M1 and M3. Both pairs of hindwing
veins are stalked as in the Hemitheiti. The male antennae are robustly
bipectinate, the pectinations tapering away to two thirds of the way along the
shaft.
The wings are dull grey-green,
with the translucent area irregular over the central part of the forewing. On
the underside the wings are greyer, with the translucent area conspicuous and
also a paler marginal zone that is much less evident on the upperside.
In the male abdomen the
third sternite lacks setae and the eighth segment is unmodified. The genitalia
have uncus and gnathus quite strongly sclerotised, the socii about half the
length of the uncus, rather rectangular. The saccus is simple, not cruciform.
The valves have two diagnostic features: the costa extends as a fine spine
separate from, but adjacent to, the main distal part of the valve, itself
narrow, tapering. The sacculus extends in a massive sclerotised plate, apically
rounded, with a dorsal subapical spur and a much more basal spur on the ventral
margin.
The female genitalia
have the ovipositor lobes of the modified type, albeit rather rounded than
oblique. The sterigma consists of two zones of puckering, not quite concentric,
with the ostium relatively anterior within them. The ductus is short, the bursa
pyriform, slightly scobinate throughout, with a patch of slightly stronger
sclerotisation centrally within this (Fig 424, a female from Peninsular
Malaysia).
The genus contains two
Sundanian species.
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