TRIBE ARCTORNITHINI n.
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Arctornis parvaclava sp. n.  


Arctornis parvaclava (holotype)


16-17mm. The wings are much as in corrugata, though without a discal spot. The fringes are slightly grey. The head, palps and legs are marked as in magnaclava. The male genitalia have an uncus and valve shape as in magnaclava, though the valves are shorter. The harpe is very much shorter (only half as long as in magnaclava), still clublike, though with the spining restricted to the apex of the club, which does not extend beyond the valve margin.

Taxonomic note. It is possible that one of magnaclava, parvaclava, or possibly the species described next, is clavigera Toxopeus. However, a specimen in BMNH (slide 2132) stated to have been compared with the type of clavigera has genitalia as in camurisquama Collenette (See A camurisquama Collenette comb.n).

Holotype . SARAWAK: Gunung Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D. Holloway et al.) Site 20, Mar.-Apr., W. Melinau Gorge, 150m, 422577, FEG 3, kerangas, BM lymantriid slide 1591.

Paratypes: 2 as holotype, 3 (slides 1619, 1622) general data as holotype but Site 23, April, W. Melinau Gorge, 250m, 430558, FEG 4, limestone forest; 1 (slide 2151) Ulu Temburong Expedition 1978, BRUNEI, Base Camp, 300m, m.v. light, 10.x.1978 (T.W. Harman).

Geographical range. Borneo.

Habitat preference. All material is from lowland forest, with a predominance of records in kerangas and forest on limestone.

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