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Liparopsis Hampson

Liparopsis sundana sp. n. 

Liparopsis sundana (paratype)

12-13 mm. The facies is as illustrated. The species is smaller than L. postalbida Hampson (N.E. Himalaya, China, Taiwan), which spans 15--16 mm. There are many similarities in facies but in sundana the patterns are more clearly defined and there is a definitely darker tornal half to the hindwing. L. dympna Schaus (Philippines) resembles sundana.

In the male genitalia the differences from postalbida are: the juxta does not protrude beyond the saccus; the aedeagus apex lacks scobination; the valve costa is sinuous rather than lobed; the valve apex is curved upwards rather than straight; both ventral processes of the valve are sclerotised, spine like, rather than just the distal one, which is subapical rather than central. In L. dympna the uncus is square-ended, the ventral process of the valve acute as in sundana, but the central process is enlarged, rounded, fused with the costa, eclipsing the valve apex which is exterior to it.

Holotype . SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J. D. Holloway et al.), BM 1978-206, Site 15, February, Camp 2.5, Mulu, 1000 m, 413461, Lower montane forest, BM notodontid slide 1009.

4 SARAWAK, general data as above, various localities; 6BRUNEI, various localities (Lt. Col. M.G. Allen).

Geographical range. Borneo, Sumatra.

Habitat preference. The species has been taken infrequently in various lowland forest types in Sarawak and Brunei, but also in lower montane forest on G. Mulu and at 1618 m in upper montane forest on Bukit Retak.

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