bruneiconcha sp. n.
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.
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.
preference. The only specimen is from lowland forest.
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