Miscellaneous Genera II
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Ugia Walker

Type species: disjungens Walker, Singapore.

Iluza Walker (type species decisa Walker, India); Sarthida Walker (type species signifera Walker = disjungens).

Males in this genus and the next have long, bipectinate antennae. The hindwing margin is slightly angled at vein CuA2. The male legs are not conspicuously tufted in either genus. The facies of the two genera is also similar, with a strong, oblique postmedial fascia extending from the forewing apex to the centre of the dorsum, and being continued on the hindwing medially. This fascia is often slightly doubled in
Ugia, the inner component usually being strongly angled basad subcostally on the forewing, though this is much more obscure than the rest of the fascia. There is a more diffuse submarginal in both genera, distinctly stepped on the forewing but more irregular on the hindwing.

In the male abdomen the eighth tergite is bilobed around a central, X-like thickening, and the sternite is more elongate, thickened by a long central rod that diverges into a triangle posteriorly, and is bifid with two additional lateral rods anteriorly. Between the lateral rods and the posterior triangle, there is an extensive scale-bearing zone on each side. The genitalia are very elongate and narrow as illustrated, but have the typical catocaline inverted V- or Y-shaped juxta. The valves are simple, constricted near the base of the costa, where there is a simple, digitate process.

In the female, the ostium is between the seventh and eighth segments, the seventh sternite large, but slightly shorter than the tergite at the posterior margin. The ductus is long and the bursa relatively short, ovate, neither strongly sclerotised, and the latter with the ductus seminalis arising as a slight appendix subbasally.

The genus is diverse in the African and Oriental tropics. Several species were taken by S.J. Willott (unpublished data) in the vicinity of the Danum Valley Field Centre. All were predominantly taken in the forest understorey. See also
Tochara creberrima Walker (p. 266), a species where males also have long, bipectinate antennae.

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