SUBFAMILY HADENINAE
View Image Gallery of Subfamily Hadeninae

Bornolis Gen. n. 

Type species: kamburonga Holloway.

This genus is erected for a single Bornean endemic that was originally described in the genus Hadena Schrank because of general similarities of the forewing facies to some members of that Palaearctic genus.

Typical Hadena have, in the male genitalia, a coronate cucullus, a strong central, saccular harpe, and a bifid, scobinate juxta. The female genitalia have a weak appendix bursae if they have one at all, and the bursa has one, or sometimes two, bandlike scobinate signa.

The Bornean taxon lacks, like Hadena, the trifine hair pencil but also lacks the male features listed above. The harpe is reduced to a small, rather distal ampullus and overlaps a pickaxe-like process that arises from the costa. The form of this is bilaterally asymmetric as is the tapering, acute, coronaless valve apex. The juxta is simple, strap-like. The aedeagus has an elongate vesica with a basal lateral arm and a variety of cornuti and scobinate patches as illustrated (Fig. 72). The female genitalia have a long, relatively broad, sclerotised ductus bursae, a well developed, corrugate appendix bursae, and four scobinate bands in the bursa.

There is some similarity in general facies, tapering valves with a process from the costa in the male genitalia, and the lateral lobe to the aedeagus vesica to the Palaearctic Panolis Hubner (type species flammea Denis & Schiffermuller) but in that genus there is no asymmetry in the male genitalia, and a much weaker ductus and appendix bursae in the female.; the bursa contains only two scobinate bands.

Support for an association with Panolis would be provided if the larvae were found to feed on some of the many conifers present at the altitude at which the adult occurs. P. flammea is a conifer feeder.

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