The Eugoa Walker group of genera
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Eugoa aridoides sp. n.

Eugoa aridoides (holotype)
(x 1.56)

, 7-8mm. This is a paler, browner species than clavata but has similar fasciation to the forewing. However, the black discal spot is much larger and is elongated basad by a black streak, sometimes detached from the spot itself. In this feature it is similar to arida van Eecke (Sumatra, Java) where there is a large, rather elliptical black spot (seen also in two specimens of aridoides). The male antennae are ciliate. The male genitalia are very similar to those of arida, but the valve saccular process is just shorter than the valve itself, rather than just longer, and not so strongly flexed dorsally over its apical portion. The aedeagus vesica contains three or four robust cornuti rather than a large cluster of more slender ones. The female genitalia resemble those of clavata, but there are no lateral pockets on the seventh segment.

Holotype SABAH: Poring, 1800ft., E. of Mt. Kinabalu, 20-23.i.1976 (E. W. Classey ), BM arctiid slide 5039.

Paratypes: 1 (slide 5085) as holotype; 1 SABAH: Ulu Dusun, 30 mls W. of Sandakan, 28-31 .i. 1976 (E. W. Classey); 1 MALAYSIA: Sabah, Danum Valley, 170m, 458N, 11748E (S.J. Willott), 1 understorey, Obs. Platform, DVFC, 19.viii.93; 1 BRUNEI: 30-60m, Labi, lowland forest and secondary veg.,15.12.1979 (R. Fairclough); 1 (slide 5260) BRUNEI: 300m, Ulu Temburong, rainforest (H.S. B[arlow]). Oct. 1978; 1 BRUNEI: 50-100 ft., Badas, Agathis/ swamp for./secondary vegetation, 27.ii. 1982 (G.S. Robinson).

Geographical range. Borneo.

Habitat preference. The species is infrequent in lowland forest.

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