Miscellaneous Genera VI
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Radara Walker

Type species: vacillans Walker, S. Africa.

Chabera Walker (type species tauralis Walker = nealcesalis Walker, Dominican Rep.), praeocc.; Chirconia Schaus (type species anartoides Walker, Venezuela); Diodines Schaus (type species trilinea Schaus, Ecuador); Duriga Schaus (type species nealcesalis Walker, Dominican Rep.); Matiloxis Schaus (type species rubromarginata, Schaus, Mexico); Mecynoptera Schaus (type species convergens Schaus, Costa Rica), praeocc.; Rhaesena Walker (type species transcissa Walker, Australia, = subcupralis Walker, Old World Tropics); Symplusia Holland (type species frequens Holland, W. Africa, = subcupralis).

The genus, as currently constituted (Poole, 1989), is pantropical and moderately diverse in all regions, more so in the Neotropics. The Bornean Radara apicaloides Poole has been transferred to the hypenine genus Hiaspis Walker by Lödl (1998), where it reverts to its original name, apicalis Swinhoe.

Species in this genus are small, with characteristic reddish brown forewings that are apically acute and are usually obtusely angled at the centre of the distal margin. The medial and postmedial are straight at the boundary between darker brown that grades paler basad and much paler brown that grades darker distad. These fasciae are well separated at the costa and more or less convergent at the dorsum through the obliqueness of the medial. The hindwings are medium brown, with the abdomen, particularly in males, extending well beyond them. The general build of the species is similar to that in
Hepatica Staudinger (p. 452) Acidon and Hiaspis (Hypeninae), and Mecistoptera Hampson (Herminiinae). The male antennae are fasciculate in vacillans, fasciculate-serrate in subcupralis and the Bornean species.

In the male abdomen (Old World taxa) the counter-tympanal hood is postspiracular. The eighth segment is of the framed, corematous type. The genitalia have the valves simple, tongue-like, tapering slightly distally, often with a slight appressed process subbasally on the costa, with a shallowly curved pleat surrounding it. The tegumen and vinculum are of equal length, and there is a structure that may be a paratergal sclerite. The aedeagus vesica is broad with about four lobes and sometimes a cornutus.

In the female genitalia (
subcupralis), the seventh segment is only slightly modified, and the ostium is a broad, deep pocket associated with the eighth segment. The ductus bursae is moderate, narrow, sclerotised.

The genus is most diverse in the New World with about 20 species and has four Afrotropical ones and one in Madagascar. The Afrotropical subcupralis also occurs in the Indian Subregion and Australia, but the Bornean species is strictly Oriental. One species (apicaloides Poole = apicalis Swinhoe) has been transferred to Hiaspis by Lödl (1998)

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