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Holocraspedon
Hampson
Type
species nigropunctum Hampson, Sri
Lanka.
Fig 7g: Holocraspedon
nigropunctum Hampson
This
genus has venation (Fig 7g) as in Philenora
Rosenstock (type species undulosa Walker,
Tasmania) which includes full complements of veins on both wings and stalking of
pairs (R2, R3) and (R4, R5)
on the forewing and (Rs, M1) on the hindwing. However, the facies and
genitalic features are distinct. The forewing has a pattern similar to that of
some Eugoa Walker, with dark brown
delineation on paler brown or grey, but with two dark dots arranged
longitudinally in the cell much more widely spaced than in that genus, and
irregular dark brown patches of shading between the postmedial and the margin.
The
male abdomen has a transverse zone of deciduous scales on the anterior of the
eighth sternite that is marked by more prominent setal bases. The genitalia have
the tegumen twice as deep as the vinculum. The valves have strong saccular and
costal processes that flank the more membranous valve apex, but the costal
process is short in the type species, the saccular one unequally bifid. The type
species also has a calcar-like structure not seen in congeners and is the only
species without cornuti in the aedeagus vesica. All other species have genitalia
much as in the two Bornean ones.
The
female genitalia have long apodemes and a bursa that is divided into a robust,
densely spined corpus and a longer, more membranous appendix.
Apart
from the type species and the three from Borneo below, the genus also includes parallelum
Semper (Philippines), sordidior Rothschild
comb. n. (New Guinea, Bismarcks), hypopolius
Rothschild comb. n. (Dampier I., Bismarcks) and mediopuncta
Rothschild comb. n.
(Solomons).
In
the original generic description, Hampson referred to the cocoon of the type
species as transparent, incorporating larval hairs and strengthened by stronger
transverse bands that cross in a figure-8. It was suspended beneath a leaf. A
similar cocoon associated with a specimen from Buru attributed to sordidior
was seen in NNM, Leiden. The strengthening bands were not obvious however;
the cocoon was the shape and size of an orange pip.
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