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

Eugoa bacchi(paratype) (x 1.56)

, 8-9mm. See the previous species. The dorsal zone of the male hindwing is brownish fawn rather than rufous. The forewings are greyish brown with a dark discal dot and an irregularly punctate, curved submarginal, concave distad. The male genitalia have the valve processes smaller than in rufibasis, more appressed. The valve apices are similar, with small costal and ventral lobes. The aedeagus vesica has two groups of more robust, more dispersed spines.

Holotype . SABAH: 5m[iles] S. Mt. Trus Madi, 1800ft., 18-28.viii. 1977 (M.E. Bacchus), BM arctiid slide 5079.

Paratypes: l (slide 5077) BRUNEI: 3m, Seria, secondary and coastal veg., 30.12.78 (Lt. Col. M.G. Allen); 1 (slide 5081) BRUNEI: Mumong, secondary and coastal veg., 28.12.79 (R. Fairclough).

Geographical range. Borneo.

Habitat preference. Two of the specimens are from coastal forest as for rufibasis, but the other is from forest inland at about 600m.

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