Monobolodes pseudosimulans sp. n.
10-12mm. The species is one of several,
including M. simulans Butler comb. n. (Himalaya) and M. fuscibrunnea Warren
(New Guinea), where the male hindwing is rufous-brown, that of the female being
duller brown or black, with generally less rufous forewings. The male forewings
of the Bornean species have a strong, transverse, dark brown postmedial, basal
to which the dark brown continues, grading paler slightly; distal to it is more
pale rufous brown that is streaked whitish with darker brown flecks towards the
apex. These dark brown flecks are also seen in the more uniform brown female:
the fasciation of the hindwing is also more developed than in the male. The
species are best distinguished on genitalic characters. In the male genitalia
the vinculum is somewhat doubly looped, with a hair pencil at the base of each
valve. The valves are relatively large, narrow. The uncus is diagnostic, being
unusually broad at the base, tapering away to the apex. Only the seventh
sternite bears a patch of modified scales.
Holotype Ulu Temburong Expedition, 1978, BRUNEI,
Retak, 1465m, L.P. 238. M.V.
light, 20.x.1978 (T.W. Harman) BM uraniid slide 294.
Paratypes: 1 SARAWAK: Gunung Mulu Nat. Park,
R.G.S. Exped. 1977-8 (J.D.
Holloway et al.) Site 25, April, G. Api, 900m. 427550,
lower montane forest, slide 435; 2 SARAWAK: as above, but Site 20,
Mar.-Apr., W. Melinau Gorge, 150m, 422577, FEG 3, kerangas.
Geographical range. Borneo, Philippines (Mindanao: slide 459).
Habitat preference. The males are from heath forest and montane
localities, but the females are from lowland dipterocarp forest except for one
from 900m on G. Api.
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