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Risoba caeruleata sp. n.


Risoba caeruleata

18mm. The forewings are mainly deep bluish green, the black fasciae roughly as in jucunda but more distinctly punctate, with the postmedial single. The male genitalia have a costal flange as in jucunda but the aedeagus has a central row of very short spines and the diverticulum of the vesica is more than twice as long as in jucunda, with the fine spicules extending from the tip to about one-third basad.

Holotype . SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D.Holloway et al.), BM noctuid slide 16688.

Paratype . BRUNEI: 300m, Ulu Temburong, rainforest, 29.4.81 (Lt. Col. M.G. Allen).

Geographical range. Borneo.

Habitat preference. The specimens are from lowland and lower montane forest.

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