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Ophiusa triphaenoides Walker
Ophiodes triphaenoides Walker, 1858, List Specimens lepid. Insects Colln Br. Mus., 14: 1358.
Ophiodes cuprea Moore, 1867, Proc. zool. Soc. Lond., 1867: 74.
Ophiusa triphaenoides Walker; Kobes, 1985: 36.

Ophiusa triphaenoides

. This is a similar species to trapezium, with similar sexual dimorphism, but smaller, darker brown, with the forewing reniform more of a narrow bar. The antemedial and postmedial form a similar, distally rounded trapezium, but the lines have pale interior and dark exterior components. The submarginal of the forewing is single, pale, curved over the posterior two thirds, and then zig-zag subcostally where it encloses basally two blackish marks.

Geographical range. Indian Subregion to China, Taiwan, Thailand (VK), Burma, Sumatra, Borneo. It was noted in Micronesia (W. Carolines: Palau) by Fukushima (1947).

Habitat preference. Records consist of only four female specimens, taken in Brunei in recent surveys: one from disturbed lowland forest at Labi (30-60m); three from dry heath forest on sand at Telisai (15m).

Biology. The larva was described by Gardner (1941, 1947). Unlike congeners, A8 lacks any tumidity. The general colour is dark brown. The head is lined longitudinally with black and paler brown lines, and has a broad yellow band laterally. Black delineation continues onto the thorax. The abdomen has the dorsal surface densely speckled black, with larger black spots on A1 and A8, but the setae are based on white spots. The pattern is more linear laterally, with the numerous lines dark brown. There is a pale line below the spiracles, and the ventral surface is speckled black and brown. The true legs are red; the spiracles are pale with black rims.

The pupa lacks a bloom (Gardner, 1947).

Host plants recorded (Gardner; Miyata, 1983; Robinson
et al., 2001) are Terminalia (Combretaceae), Shorea (Dipterocarpaceae), Syzygium (Myrtaceae) and Pinus (Pinaceae).

The adult is recorded as a fruit-piercer in China (Wu, 1981).

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