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Arctornis secula sp.
n.
Arctornis secula  (holotype) |
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15mm. The forewings are satiny white with extensive
broad scales. The fringes are tinged brownish, and this colour diffuses away
into the distal margins (darker below). The forewing costa is tinged the same
colour, and there is a small, dark brown discal spot. There is a broad, dark
rufous brown bar across the frons between the antennae, and the palps are
slender, pale brown like the fringes. The foretibia has a dark brown spot
centrally. The male genitalia have the uncus very narrow. The harpe is slender,
straight, as long as the valve. There is a diagnostic sickle-like extension to
the basal part of the valve costa, its distal margin curving smoothly into the
dorsal margin of the valve: it thus appears very different to processes in that
position seen in the flavescens group (See
A albescens sp.n). A similar costal process
and uncus type is seen in flora (See A
flora Swinhoe comb.n).
Holotype SARAWAK: Gunung Mulu Nat.
Park, R.G.S. Exped. 1977-8 (J.D. Holloway et al.) Site 15, February,
Camp 2.5, Mulu, 1000m, 413461, lower montane forest, BM lymantriid slide
1645.
Geographical range. Borneo.
Habitat preference. The only specimen is from lower montane forest at
1000m.
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