TRIBE GEOMETRINI
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 Dooabia bruneiconcha sp. n. 


 Dooabia bruneiconcha (holotype)


19mm.The forewing margin is not angled centrally but that of the hindwing is strongly so. The body and wings are a rather dusky, dark emerald green, the fringes darker, with black dots on the veins. The postmedials are crenulate, fine,
dark brown, somewhat indistinct, that on the forewing angled, that on the hindwing curved. The submarginals are similarly indistinct rows of small brown sagittate flecks. The discal spots are very large, blackish, that of the larger than that of the forewing. On the underside the ground colour is more ochreous, the markings more blotchy, the discal spots paler. The abdomen and genitalia have features that indicate a tentative placement in Dooabia, as do the filiform male antennae: the eighth segment is modified with lateral processes and the socii as a bilobed gnathus, delicate coremata with black setae and a short comb of elongate spines arising from the sclerotised, angular sacculus.

Holotype  BRUNEI: 450m. Ulu Temburong, rainforest, 28.4.81 (Lt. Col. M.G. Allen) BM geometrid 17489.

The species is named for Brunei Shell Bhd at the request of The Royal Geographical Society (see Acknowledgements) in appreciation of their support in developing the Kuala Belalong Field Studies Centre and The Brunei Rainforest Project 1991/92. The specimen was taken in the vicinity of Kuala Belalong.

Geographical range. Borneo

Habitat preference. The only specimen is from lowland forest.

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