11-13mm. The facies is indistinguishable from that of
The male genitalia have the base of the valve broader, more extensively fringed
with hairs than in quadripennis, more as in
The apex of the valve is also more expanded as in the latter species but has a
very much more extensive ovate pad of peg-setae, though, unlike in
quadripennis, this is surrounded by a similarly ovate zone of crinkling and
scaling, rather like a pan-scrubber; in schistipennis this zone consists
of smaller and more irregularly arranged peg-setae, these only being long and in
rows in a small basal area of this. The apical zone of the valve in
schistipennis is also angled on its costal side. The aedeagus vesica in
radula and schistipennis is much shorter than in quadripennis,
and has a slight dorsal swelling at the base. The distal cornuti are robust and
more in a row than in quadripennis but are directed dorsally in radula
and ventrally in schistipennis and all other species. The female has the
bursa of even width, lacking the constriction of quadripennis.
SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D.Holloway et al.),
Site 14, February, Camp 2.5, Mulu, 1000m. 413461, lower montane forest, BM
noctuid slide 17444.
as holotype; 2
(slide 17417) as holotype but Site 15; 1
(slide 17440) general data as holotype but Site 23, April, W. Melinau Gorge,
250m. 430558, FEG 4, limestone forest; 1
BRUNEI: 300m, Ulu Temburong, rainforest, 10.2.80 (Lt. Col. M.G. Allen); 1
(slide 17441) BRUNEI: Labi, 200ft, 6 Feb 1978 (Allen); 1
(slide 17445) BRUNEI: 1618m, Bukit Retak, montane forest, 14.9.79 (Lt. Col.
M.G. Allen); 1
(slide 17424) BORNEO, 79-39.
Geographical range. Borneo, Sumatra (slide 17432).
The species is the most frequent of the three and
has been taken in forested localities from the lowlands to just over 1600m.
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