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Sinarella griseola sp. n.


Sinarella griseola
Figure 331
Figure 333

, 9-10mm. This species is very similar in facies to albeola and probably is only reliably identified by dissection. The forewing is generally greyer in the zone between the medial and postmedial on the upperside and more uniformly so on the underside, though the subapical black flecks of the submarginal are usually less pronounced than in albeola. On the hindwing, the medial and postmedial fasciae are closer together and more parallel (they diverge slightly anteriorly in albeola), the postmedial with a less pronounced angle equivalent to that of the submarginal. The male genitalia have a dorsal spine on the uncus but in a more central position. The valves are much broader and have a series of fine processes around the margin, two costally and five ventrally, the most distal on each side much longer than the others. The aedeagus has two longitudinal rows of spines, but the vesica lacks the large cornuti seen basally in albeola. The general structure is similar to that seen in c-album Owada (illustrated as lunifera by Owada (1987)), but there are more processes in the valve margins, and the spining at the aedeagus apex is diagnostic. The female genitalia have the ostium much more sclerotised, trifoliate, with a central triangular lobe dorsally between two more rounded ones ventrally (there is a bifid structure in c-album).

Holotype . SARAWAK: Gunong 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 noctuid slide 19890.

Paratypes: 2 (slide 19889) as holotype; 1 general data as holotype but Site 7, January, Long Pala (Base), 50m, 324450, alluvial / secondary forest; 1 general data as holotype but Site 10, February, Camp 1, Mulu, 160m. 386470, mixed dipt. for.; 2 (slide 19879) general data as holotype but Site 11, February, Camp 1, Mulu, 150m. 385470, mixed dipt. f., 1 (slide 19883) general data as holotype but Site 19, March, W. Melinau Gorge, 100m, 427567, alluvial forest.

Geographical range. Borneo.

Habitat preference. All material is from lowland forest below 200m, including heath forest.

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