Miscellaneous Genera I
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Brontypena Holland

Type species: eximia Pagenstecher, Moluccas, New Guinea.

This is one of four genera where the labial palps are extremely elongate and directed forwards and where the forewings are relatively narrow. The others are the monobasic Ptyorhyncha Hampson (type species argyresthis Hampson, N.E. Himalaya), Corcobara Moore (see below), and Latirostrum Hampson (type species bisacutum Hampson, N.E. Himalaya, with a second species, japonicum Miyake, from Japan). All the other three genera have the forewing margin bifalcate to a varying degree, whereas in Brontypena it has a gentle curvature that continues smoothly round the tornus to the dorsum. The forewings have a dead leaf pattern that is not evident in the other genera. The hindwings can be pale yellow, yellow with a brown border, or uniformly brown. The male antennae are fasciculate.

In the male abdomen (ochrocuprea) the eighth segment is unmodified. The genitalia have a slender uncus with a fine apical spine opposed by a distinct scaphium. The valves are distally complex, divided into a costal digitate process, a central spine with a slightly stepped dorsal margin, and a much shorter saccular lobe. The aedeagus vesica has a bundle of numerous moderate cornuti. The male abdomen in Corcobara is very similar.

In the female genitalia the ostium is at the posterior of the seventh sternite and flanked by angular lateral extensions of the tergite which extends somewhat more distally than the sternite. The ductus is short, sclerotised over the basal two-thirds, then with a membranous section to a lateral lobe bearing the ductus seminalis itself slightly basal to a thickened pouch on the other side, before the expansion into the somewhat pyriform, unornamented corpus bursae.

The genus contains three species in the Moluccas to New Guinea area and the Sundanian one below.

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