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Antitrisuloides Gen. n.

Type species: catocalina Moore.

The genus Trisuloides Butler contains a number of Oriental species of generally similar external appearance. The type species is sericea Butler (Himalaya, China, Japan) which has as subspecies or a sister group of taxa trigonoleuca Prout (Ceram), hawkeri Prout & Talbot (Buru) and papuensis Warren (New Guinea). Both Trisuloides and Smilepholcia Prout & Talbot (type and only species luteifascia Hampson from the N.E. Himalaya) have male genitalia as described for Anepholcia above; an additional character is the simple vesica to the aedeagus which has concentric rings of corrugation.

The male genitalia of catocalina Moore depart from this pattern and indicate that it merits generic status. It may be defined by the white bar in the postmedial zone of the forewing mentioned in the specific diagnosis below, by the filiform, ciliate antennae in both sexes and by the following characters of the male genitalia: the apical spur to the valve; the small, central, transverse harpe; the spined lateral lobes of the aedeagus; the multiple lobing of the aedeagus vesica which has a small zone of fine spines distally.

In the female genitalia the most distinctive character is on the seventh abdominal segment where the sternite is broadly triangular, the tergite extending round it to almost meet itself centrally.

There is some resemblance in forewing pattern to Elydnodes Hampson but Elydnodes species are totally grey with, in the male abdomen, lateral coremata basally and a single one on sternite 8, the latter also seen in Trichosea Grote. The valves of the male genitalia also resemble those of Trichosea.

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