Arctornis corrugata Toxopeus syn. n.

Redoa corrugata Toxopeus, 1948, Treubia, 19: 463.

Redoa adusta Toxopeus, 1948, Treubia, 19: 463.

Redoa corrugata Toxopeus; Mackey, 1984: 6.

Redoa sp. 2, 9; Holloway, 1976: 43, 45.

Diagnosis

The facies is much as in the previous three species, so dissection is necessary for identification. The uncus is similarly narrow. The valves are rectangular, broadened slightly distally, with a slender harpe, apically bulbous but not acute, extending well beyond the distal margin. It is slightly flexed down centrally.

Taxonomic notes

1. A specimen labelled by Collenette as having been compared with the type of A. adusta Toxopeus comb. n. had genitalia referable to corrugata. Both these taxa are stated by Toxopeus (1948) to have the forewing costal edge ochreous. It is only narrowly so in material under study here. The identity is established from the paratype examined by Mackey (1984).
2. The holotype of A. corrugata Toxopeus has been examined. The genitalia (Fig 112) confirm the identity. The genitalia of the holotype of adusta Toxopeus (Fig 110) indicate it to be conspecific with corrugata rather than ferruginicosta Holloway; both possibilities were discussed in The Moths of Borneo: Part 5 (pp. 136, 145). Therefore adusta is placed as a synonym of corrugata, syn. n.

Geographical range

Borneo, Sumatra.

Habitat preference

The species ranges from the lowlands to 1620m (Kinabalu records). During the Mulu survey it was found to be particularly common in lowland forest at 250m on the slopes of the limestone G. Api.

Genitalia:

Other images: