View Image Gallery of Tribe Amphigoniini

Amphigonia Guenée

Type species: hepatizans Guenée, East Indies.

Synonym: Acygoniodes Hampson (type species hepatizans).

All species in this genus occur in Borneo and have a distinctive wing shape and facies, the former in the forewing consisting of strong central angles to the wing margins; the angles on the hindwing are somewhat produced into short tails. The wings are a rich, dark, purplish brown with darker fasciation. The marginal zone of the forewing is distinctly paler, the basal boundary to this zone being strongly arched over part of its course, with a paler zig-zag submarginal being evident within the arch. The reniform is more or less divided into two, and each portion has a slightly more rufous centre.

The male abdomen has the eighth segment unmodified apart from short apodemes on the tergite. The uncus has a horned apex, and a scaphium is present.The valves are narrow, with a spatulate apex set between costal and saccular processes as illustrated, more developed in the type species. The juxta could be a broadened form of the catocaline inverted ‘V’ or ‘Y’. The aedeagus vesica has several diverticula, with areas of scobination but no cornuti.

In the female (
motisigna Prout), the ostium is set between the apex of the triangular seventh sternite and the extended corners of the corresponding tergite.

The ductus is sclerotised, moderate to short. The corpus bursae is elongate, without a signum but generally scobinate. The genus consists of the species described below. The biology of the type species is also described.

<<Back >>Forward <<Return to Content Page

Copyright © Southdene Sdn. Bhd. All rights reserved.