Hypersypnoides Berio
Type
species: congoensis Berio, Africa.
Synonym:
Othresypna
Berio
(type species: subolivacea Walker, Borneo).
This
genus consists of one African species that typifies it, and a large number of
mostly Oriental ones that Berio & Fletcher (1958) placed in subgenus Othresypna Berio. The
former has spined tibiae, the latter have not. All species have a spine
extending the apex of the fore-tibia. The forewing facies of the
Indo-Australian species is often rather uniform and highlighted by a paler reniform
that may be surrounded by smaller satellite spots and two irregular rows of
pale marks between it and the costal margin. The male antennae are fasciculate.
In the
male abdomen, the eighth segment is reduced to a narrow ring of sclerotisation.
The genitalia frequently have a dorsal process to the uncus, which is short, at
the end of a long extension from the strongly angled tegumen; lateral mounting
with removal of the right valve can display this effectively, though this will
render comparison difficult with the drawings of the dorsal aspect of the uncus
in Berio & Fletcher (1958). The valves are relatively deep, the flange
central and oblique. The ductus ejaculatorius inserts only just subbasally in
the aedeagus in some species.
The
female fenella Swinhoe, submarginata Walker) have the ostium wide, just
posterior to the ventral interruption of the eighth segment. The ostium forms
the mouth of a sclerotised, goblet-like ductus. The bursa is pyriform, without
any significant ornamentation. The seventh sternite is only slightly reduced.
The genus is most diverse in the Himalayan region and western China, but has five species in
Borneo
(four montane). The most easterly species is in the S. Moluccas.
The
larva (see below) resembles those of the previous genus. The host plants noted
by Miyata (1983) are also similar: Quercus (Fagaceae) and Rubus (Rosaceae).
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