Unassigned, possibly plesiomorphic genera
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Tampea Snellen

Type species: lithosioides Snellen, Java (= reversa Walker).

Synonym: Ocrosia Hampson (type species reversa Walker, Borneo).

This genus and its synonym are based on two taxa where the type material has not been located (lithosioides; male in Staudinger collection but not in MNHU, Berlin (W. Mey, pers.comm.)) or is in poor condition (reversa; female in OUM, Oxford but lacking one forewing and the abdomen). Nevertheless, the original description of the male has distinctive features of venation and androconia, and can be matched with a male and female from Java in BMNH (slides 4606, 4607). The type of reversa matches the female in available characteristics.

The forewing venation of both sexes has an unusually extensive radial sector branching system of (R2((R3 (R4, R5))M1)), and the male has an elliptical patch of white androconial scales on the underside. The male hindwing has the costa strongly bowed and the apex concave, so the margin to M3 or CuA1 (one is lost) is distinctly sigmoid, with a fringe of hairs along the convex part. The male venation is shown in Fig 10f, and is similar to that of the monobasic genus Holochrea Hampson (type species xanthogramma Hampson, Sangihe), which also has an androconial patch on the forewing underside. The type species is sexually dimorphic, as discussed in its diagnosis below.

 Fig.10f: Tampea reversa Walker

The male genitalia have the uncus broadening to the apex where there is a small apical spur. The valves are elongate-ovate with a central longitudinal pleat, and the vinculum is narrow but expanded to support a membrane with some setae. The aedeagus vesica is generally coarsely scobinate. The seventh abdominal segment has lateral coremata. The male abdomen in Holochrea is more distinct from that of reversa than are those of other species here included in Tampea that lack the androconia and peculiarities of venation. Holochrea lacks terminal coremata but has them laterally on the fourth segment and also on the exterior of the valves. The valves are much larger, apically divided, complex, and have a furca-like structure between them. The aedeagus is slender, straight. It is therefore not clear whether Holochrea should be included in a wider concept of Tampea.

The female has an irregularly pyriform bursa set on a slightly tapering ductus; there are two signa, infolded patches of scobination apically and laterally. There is a slight colliculum distally on the ductus. A corethrogyne may be present.

Apart from the type species, further species are transferred tentatively from Eurosia Hampson (see Eurosia Hampson) and a new one described. These lack some of the features just described for reversa, particularly the venation characters, but have similar coloration and share a number of the genitalic features, as indicated for each. The genus thus extends from Sundaland to Wallacea.

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