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Caeneressa marcescoides sp. n.
Caeneressa marcescoides 
(paratype) |
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19-21mm. In general facies this species resembles C. marcescens Felder
comb. n. (Java, with the related C. ericssoni Rothschild comb.
n. in Sumatra) but is large, a darker, almost blackish grey, with a complete
row of white patches on each side of the abdomen. In the male genitalia the
aedeagus is massive, angled, with a tubular vesica; in marcescens it is
slender, gently curved, with a globular vesica. Other features distinguishing
the species from marcescens are: a broad, triangular saccus; scobinate
lobes laterally at the base of the tegumen; a rhomboidal uncus.
Holotype . BRUNEI: 60m, Ulu Belait,
lowland forest, 21.2.1980 (Lt. Col. M. G. Allen) BM arctiid slide 4145.
Paratypes: 1
BRUNEI: 75m,
Labi, Rampayoh, primary, June 1982 (Lt. Col. M. G. Allen); l BRUNEI: 30-60m,
Labi, lowland forest and secondary,
6.2.1978 (Lt. Col. M.G. Allen).
Geographical range. Borneo.
Habitat preference. All specimens were taken in lowland, rather swampy
forest.
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