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Gyrtothripa parvipusilla sp. n.


Gyrtothripa parvipusilla

6-7mm. This is a smaller and slightly paler species than pusilla (7-9mm); the dorsal half of the basal third of the wing is more distinctly paler, and the general tone of the wing more rufous. The male genitalia have the tegumen reduced relative to the vinculum compared with pusilla; the uncus is less strongly tapered and more clearly distinguished from the tegumen. The valves are somewhat narrower, the costal margin less produced into an angle, and the ventral process with curved setae is rounded rather than acute. The aedeagus is slender, broader. The female has the corpus bursae ovate rather than sausage-shaped, with the scobination distinctly denser over two-thirds rather than uniformly light throughout.

Holotype . SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D.Holloway et al.), Site 26, April, G. Api Pinnacles, 1200m. 428545, open scrub, BM noctuid slide 10684.

Paratypes: 1 as holotype; 6 (slide 17162) as holotype but Site 25, April, G. Api, 900m. 427550, lower montane forest; 1 as holotype but Site 27, April, G. Api, 1500m. Pandanus Camp, 429541, scrub, Pandanus; 1 as holotype but Site 3, January, Camp 4, Mulu, 1780m. 453463, [upper] montane forest; 1 as holotype but Site 14, February, Camp 2.5, Mulu, 1000m. 413461, lower montane forest; 1M SABAH: Mt. Kinabalu, 30.vii-3.viii.1979 (E.W. Classey); 1 BRUNEI: 15m, Telisai, sandy heath forest and Gymnostoma, 8.1.1980 (R. Fairclough).

Geographical range. Borneo, Peninsular Malaysia, Philippines, Sulawesi (slide 17164), New Guinea (slide 18041).

Habitat preference. Most material is from montane forest from 900m to 1780m, particularly on the limestone G. Api, but one specimen was taken in dry heath forest in the lowlands of Brunei.

Biology. Material has been reared in Peninsular Malaysia by U. Maschwitz from Saraca (Leguminosae) flowers.

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