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Rhesala
falcata sp. n.
 ,  13-14mm. See the previous species for shared differences from imparata.
This species is larger and browner than fusiformis, with slightly more irregular
postmedials, that of the forewing being more weakly expressed centrally. The
labial palps are longer, relatively slightly narrower. The male genitalia have
the swollen section of the uncus relatively more basal such that the slender
apical part is longer. The saccular part of the valve is more produced on the
ventral side and protrudes as a longer spine on the ventral margin. There is no
corema. The distal part
of the valve tapers much more and is upwardly falcate. The female has a longer
and narrower corpus bursae than in fusiformis,
the basal rasp-like sclerite being joined by spines within the neck of the
bursa.
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Rhesala
falcata
(holotype) |
Holotype
. SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D.Holloway et al.),
Site 20, Mar.-April, W. Melinau Gorge, 150m. 422577, FEG 3, kerangas, BM noctuid
slide 18787.
Paratypes:
3
(slides
10763, 19223) 3 general data as holotype but Site 14, February, Camp 2.5, Mulu,
1000m. 413461, lower montane for.; 1 (slide
19224) as holotype but Site 16, March, Long Pala, Base, 70m. 413461, alluv. /
second. for.; 1 as holotype but Site 27, April, G. Api, 1500m, Pandanus Camp,
429541, scrub, Pandanus.
Geographical
range. Borneo.
Habitat
preference. The species is found in forests from the lowlands to 1500m, but
is more frequent in the lower montane zone.
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