Risoba viridangulata Holloway sp. n.
Diagnosis
♂♀ 17-18mm.
The forewing facies places this species with glauca and allies but the pale and green marked areas of the wing are more distinctly interrupted by broad bands of grey: an arcuate one, concave costad, basal to the postmedial ‐ a transverse one between the postmedial and the submarginal that stops short of both costa and dorsum. The male genitalia have a valve costal process as in glauca but distinctly smaller. The aedeagus has an extended row of short, well spaced spines ventrally, and the aedeagus vesica is globular with a transverse row of somewhat sinuous spines that grade in robustness from one end to the other.
Holotype ♂
BRUNEI: 300m, Ulu Temburong, rainforest, 30.6.79 (Lt. Col. M.G.Allen), BM noctuid slide 16675.
Paratypes
- 1♂, 1♀ as holotype, different dates
- 1♂ BRUNEI: 60m. Ulu Belait, lowland forest, 21.2.80 (Lt. Col. M.G. Allen)
- 1♀ Ulu Temburong Expedition 1978, BRUNEI, Base Camp, 300m, m.v.light, 2.x.1978 (T.W. Harman)
- 1♀ NORD BORNEO: Mont Kina Balu, 5.8.1903 (John Waterstradt)
- 1♀ S.E. BORNEO: Samarinda, x.1938 (M.E. Walsh)
- 1♀ Bidi, SARAWAK, 1907-1908 (C.J. Brooks).
Geographical range
Borneo, Sumatra (slide 16699), Java (slide 16701).
Habitat preference
Martini & Thony (1993) noted one specimen from 950m on G. Trus Madi, Sabah, the type series is all from lowland forest, however.
Genitalia:
