“Leuconola” wilsonae Holloway sp. n.

♂♂ 6-7mm, ♀ 8mm. The male antennae are fasciculate, but the forewing facies is somewhat similar to that of sijthoffi in the presence of a black medial triangle on the costa amid a greyish white ground colour. However, the triangle is about twice as large, and the rest of the wing lacks further black markings but has a series of irregular, sinuous, transverse pale grey fasciae, those extending posterior to the apex of the triangle tinged rich brown. The hindwings are a darker grey than the forewing. The male genitalia are atypical of Nola but not referable to Manoba, having a strong uncus with scaphial lobes, but with the eighth tergite only having apodemes, these being short, rounded, well separated. The valves are unusually shaped, constricted subapically to produce a cucullus. The harpe represents a strong extension of the sclerotised dorsal margin of the sacculus, with its apex reaching the base of the cucullus beyond a small angle on the ventral margin just basal to the constriction. The saccus is strong. The aedeagus has a small globular vesica without ornamentation.

Holotype ♂

SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D.Holloway et al.), Site 22, April, W. Melinau Gorge, 150m. 421578, wet kerangas, BM noctuid slide 17544.

Paratypes

• 1♂ BRUNEI: 60m, Lamunin, Sg. Burong water tanks, disturbed lowland forest, 17.ix-30.ix.1992 (G.S. Robinson)
• 1♀ BRUNEI: 15m, Telisai, sandy heath forest and Gymnostoma 13.12.1979 (R. Fairclough)
• 1♂ MALAYSIA: Sabah, Tawau Hill, 300m along Sungei Tawan near trail to Air Panas river bed in primary / riverine forest, at light, 28.iii.2001 (J.P. & M.J. Duffels) (in Zoological Museum, University of Amsterdam).

Taxonomic Note

The species wilsonae Holloway was described provisionally in “Nola”, but indicating significant differences in the male genitalia. László et al. (2010) placed it in a new genus, Leuconola László, Ronkay & Witt, and described a second species as type species, herczigi László, Ronkay & Witt, from Thailand. They illustrated (fig 10) the female genitalia of wilsonae for the first time, noting unique features of the ostium, ductus bursae, and corpus bursae. The last has an unusual tube-like appendage distally and two well separated and dissimilar signa.

Geographical range

Borneo.

Habitat preference

All specimens are from lowland forest, and two are from heath forest.

Genitalia: