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Sysstema pauxilloides sp. n.  

Sysstema pauxilloides

9-10mm. In facies this species resembles the N.E. Burmese S. pauxilla Prout, being densely suffused with dull brown on pale grey, apart from an indistinct postmedial bar on the forewing. The forewing discal dot is darker than the rest of the wing, that of the hindwing only weakly so. The abdominal processes and the genitalia of the male resemble those of pauxilla, but the uncus is truncated, the gnathus more broadly and deeply bibbed, the costal process to the valve rounded rather than triangular, and the furca processes are much larger.

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 geometrid slide 16348.

Paratypes: 2, 1 as holotype: 4 as holotype but Site 14; 1 general data as holotype but Site 20, Mar.-Apr., W. Melinau Gorge, 150m. 422577, FEG 3, kerangas, BM geometrid slide 16349; 1 SABAH: 5 miles S. Mt. Trus Madi, 1800ft., 18-28.viii. 1977 (M.E. Bacchus) BM geometrid slide 16468.

Geographical range. Borneo, Sumatra (Sato slide RS-18 17).

Habitat preference. Most specimens are from lower montane forest, one from lowland dipterocarp forest and one from kerangas.

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