Hijracona HollowayGen. n.

Genus Details

Type species: *punctifascioides *sp. n.**

Externally this genus has facies as in Thacona, particularly T. punctifascia Hampson and allies. The only specimen was originally thought to be a female of punctifascia, almost identical in facies to that illustrated for punctifascia in Thailand by S & P (2007), particularly in the slightly creamier ground colour and the narrower dark patch on the forewing dorsum between the medial and the antemedial. The marginal black marks between the veins on the forewing are divided into two rather than entire as in punctifascia. The male antennae are very narrowly bipectinate, each of the rami with a strong tuft of setae from its apex. The length of the rami reduces gradually with distance along the flagellum.

The most striking differences are in the male abdomen. The eighth sternite and tergite have a central ridge of thickening, that of the former shorter and flanked by a pair of somewhat sinuous sclerites, broadest and incurved distally, that then taper to give rise to slender lobes. The tergite has broad, rectangular apodemes. The seventh sternite has a central apodeme. In Thacona, the eighth segment is relatively unmodified, and the apodemes are normal, tapering. The genitalia have the uncus entire, without socii, as in most Thacona, but it is distinctly crested as illustrated. The tegumen is much wider and deeper than in Thacona. The vinculum on each side lacks the lacunae seen in Thacona punctifascia. The juxta is more complex. The valves are paddle-like, rather than tapering, and have a small central spur and an unusual flap-like structure associated with their basal half. The aedeagus is slender and about as long as the valves. In Thacona the aedeagus is usually robust, three times as broad as in Hijracona and shorter than the valve.


Species (1)


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