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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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