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Bosara bursalobata sp. n.  

Bosara bursalobata(holotype)
(x 1.16)

7-8mm. The facies is not dissimilar to that of bursacristata but the fasciation is more untidy, the postmedials more angular but the angles are shallower. There are a few more dark brown scales punctuating the veins. The ocatavals and male genitalia are similar to those of bursacristata, but the valves have the saccular process more acute and more basal. The aedeagus is less tapered. The female has the ductus more triangular than in bursacristata, with a constriction before a sclerotised neck section of the bursa of similar length. The bursa is smaller than in the previous species or modesta, spined through except in a subbasal lateral lobe that is sclerotised. Females from Bali (slide 19070) are greyer, with the neck section of the bursa much shorter than the ductus, and the bursa lacks spining in the basal part of the bulb.

Holotype . SARAWAK: Gunung Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D. Holloway et al.) Site 3, January, Camp 4, Mulu 1780m. 453463, [upper montane forest], BM geometrid slide 19011.

Paratypes: 3 (slides 19009, 19013, 19014), 1(slide 19012) as holotype.

Geographical range. Borneo; Bali.

Habitat preference. All material seen is from upper montane forest at just below 1800m from Bukit Monkobo in Sabah as well as from G. Mulu. Only dissected material is given type status.

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