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Achrosis transviridis sp. n.  

Achrosis transviridis (holotype)

9-10mm. This is a smaller species than viridapex (11-12mm), very similar in facies except the whole medial area of the forewing rather than the apical zone is green, and a paler green also. The male genitalia differ in the reduction of the larger left arm of the furca and in the shape of the uncus (spatulate rather than lens-shaped). The aedeagus vesica in both species has an extensive group of moderate cornuti.

Holotype . BRUNEI: 3m, Seria, secondary and coastal veg. 16.ii. 1980 (Lt. Col. M.G. Allen) BM geometrid slide 12786.

Paratype .  SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D. Holloway et al.), Site 13, February, Camp 2, Mulu 500m, 401464, mixed dipt. for., BM geometrid slide 12873.

Geographical range. Borneo.

Habitat preference. Both specimens are from forest at low altitudes, mixed dipterocarp at 500m and coastal.

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