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Herochroma clariscripta sp. n.  

Herochroma clariscripta

20-28mm, 23mm. In facies this species resembles flavibasalis but the green speckling is darker, duller, and the fasciae more crisply delineated on the upperside, especially the forewing discal spot, picked out more distinctly with grey. The species is most reliably distinguished by the male genitalia: the apical part of the valve is more slender, obtusely angled rather than sinuous; the costal process is straighter, more slender; the quadrate apex to the gnathus is twice as long. The eighth sternite of the abdomen is only slightly centrally sclerotised on its distal margin rather than having a short, irregular projection centrally as in flavibasalis.

Holotyped . SARAWAK: Gunung Mulu Nat. Park, R.G.S Exped. 1977-8 (J.D. Holloway et al.) Site 20, Mar-Apr., W. Melinau Gorge, 150m, 422577 FEG3, kerangas, BM geometrid slide 16752.

Paratypes: 1 Sintang, BORNEO, inland [east] of Pontianak, Febr. 1989 (Dr Martin); 1 BORNEO: (G.F.C. Woollett), BM geometrid slide 17120; 1 Lawas, N. BORNEO (A. Everett).

Geographical range. Borneo.

Habitat preference. Four Bornean specimens have been seen, most from lowland localities.

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