Orothalassodes retaka Holloway sp. n.
♂ 21mm. In facies this species resembles hypocrites but is a slightly paler green with a larger dorsal white spot and less intensely reddened wing margins. It differs in the male abdomen. The eighth tergite has the arms of the terminal Y semicircular, slightly outcurved rather than digitate. The centre of the sternal margin is cleft rather than with a sclerotised protrusion. In the genitalia the pair of spinous zones near the juxta are broader, more robustly scobinate.
Holotype ♂
BRUNEI: 1618m, Bukit Retak, montane forest, 18.5.1970 (Lt. Col. M.G. Allen) BM geometrid slide 16738.
Geographical range
Borneo.
Habitat preference
The species is montane.
Genitalia: