Adra api Holloway sp. n.

Diagnosis

♂♂ 12mm. The facies of this species appears to be intermediate between that of argentilinea Walker and faircloughi Holloway, the pale streak of the forewing being only slightly interrupted by a darker mark in the discal area. However, the material is somewhat worn, and the pattern is not entirely clear. The antennae are fasciculate as in faircloughi, and the genitalia are also closer to those of faircloughi. However, they are significantly smaller with a more slender, less angled uncus. The valves are shorter and broader, and the juxta is relatively larger and has a small central process that is not evident in faircloughi. The abdomen is not modified to the extent of that of faircloughi, and the eighth sternite is approximately circular, with broad, short, splayed apodemes on its anterior margin.

Holotype ♂

SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D.Holloway et al.), Site 25, April, G. Api, 900m, 427550, lower montane forest, BM noctuid slide 14078.

Paratype ♂

As holotype.

Geographical range

Borneo.

Habitat preference

Both specimens are from lower montane forest on limestone. A Casuarina (Casuarinaceae) species is an important component of the upper montane forest of G. Api, though this does not commence until about 1200m (Collins, Holloway & Proctor, 1984).

Taxonomic Note

A new species of Adra Walker, a genus placed in the sixth sequence of miscellaneous genera, is described below. In Parts 15 & 16 a tentative connection was made between Adra and the Australasian genus Calathusa Walker, with an association with Casuarina as host plant. This new species is also from a locality close to, but not within, extensive stands of Casuarina. Adra api sp. n. (Plate 6, Fig 132) GG 12mm. The facies of this species appears to be intermediate between that of argentilinea Walker and faircloughi Holloway, the pale streak of the forewing being only slightly interrupted by a darker mark in the discal area. However, the material is somewhat worn, and the pattern is not entirely clear. The antennae are fasciculate as in faircloughi, and the genitalia are also closer to those of faircloughi. However, they are significantly smaller with a more slender, less angled uncus. The valves are shorter and broader, and the juxta is relatively larger and has a small central process that is not evident in faircloughi. The abdomen is not modified to the extent of that of faircloughi, and the eighth sternite is approximately circular, with broad, short, splayed apodemes on its anterior margin. Holotype G. SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D.Holloway et al.), Site 25, April, G. Api, 900m, 427550, lower montane forest, BM noctuid slide 14078. Paratype G. As holotype. Geographical range. Borneo Habitat preference. Both specimens are from lower montane forest on limestone. A Casuarina (Casuarinaceae) species is an important component of the upper montane forest of G. Api, though this does not commence until about 1200m (Collins, Holloway & Proctor, 1984).

Genitalia: