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Cusiala boarmoides acutijuxta ssp. n.  
Cusiala boarmoides Moore, 1887, Lep. Ceylon, 3: 407.

Cusiala boarmoides acutijuxta (holotype)

21-24mm, 30mm. This race resembles the typical race closely in facies. The postmedials, particularly the dorsal two thirds of that on the hindwing, are stronger, blacker, but with the same weak brown band just distally with a narrow white strip intervening. The male genitalia are distinguished by the longer, apically acute juxta.

Holotype . SARAWAK: Gunung Mulu Nat. Park, R.G.S Exped. 1977-8 (J.D. Holloway et al.) Site 10, February, Camp 1, Mulu, 160m. 386470, mixed dipt. for., BM geometrid slide 10425.

Paratypes: 1 BRUNEI: Kilanas Agr. Stn., Oct 1972, M.V. light (D.J. McCrae) BM geometrid slide 10426; 1 BRUNEI: 300m, Ulu Temburong, rainforest, 9.2.80 (Lt. Col. M.G. Allen); 1  BRUNEI: Ulu Temburong Exp. LP 298, 300m, Sept-Oct 1978, M.V. light (Jaya/Sutton) in Muzium Brunei.

Geographical range. N.E. Himalaya; Borneo, Peninsular Malaysia, Sumatra.

Habitat preference. The species is only known from the lowlands, taken in both forested and cultivated localities.

Biology. Bell (MS) reared the closely related C. raptaria Walker from S. India. His descriptions suggests a larva similar in appearance to that illustrated by Sugi (see generic description).

The larva is polyphagous, perhaps with some preference for the leguminous genera Cassia and Xylia.

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