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Lineopalpa Guenée
Type
species: horsfieldi Guenée, Java.
Synonym:
Paragonitis
Bethune-Baker
(type species strigocrenulata Bethune-Baker,
New Guinea = orsara
Swinhoe).
The
forewing shape and facies is typical of the tribe; the reniform is usually paler
than the ground, bilobed, each lobe dark-centred. The male antennae are sparsely
ciliate.
The
defining features are in the male abdomen, where the eighth sternite is of the
framed, corematous type, though rather flask-like in shape, and the tergite
appears weak, vestigial. The uncus is broadly shouldered, the scaphium arising
at the base of the much narrower distal part. The valves are deeply divided,
each part very slender, and the coremata are prominent. The bases of the valves
are adjacent and parallel over some distance in the type species, but over a
lesser distance in the other two. There is a long anellar tube that appears to
be based on an inverted ‘V’ structure. The aedeagus is straight, the vesica
tubular, unornamented.
In the
female, the ostium is associated with the eighth segment, and the seventh is
unmodified. The ductus is long and slender, with a short basal zone of
sclerotisation. It expands gently into the neck of a pyriform corpus bursae that
is finely corrugated and scobinate, with a small curved spine subbasally in the
type species, a massive, blunt, thorn-like structure in birena
Holloway
and two triangular invaginations in dealbata Prout.
The
genus contains five species in the mountains of the Indo-Australian tropics,
four of which occur in Borneo and the fifth, rufa Bethune-Baker
(a species very similar to orsara), in New Guinea (Poole, 1989). Poole
also included the African inexpectata
Gaede,
but this needs further investigation.
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