Ophiusa trapezium Guenée 

Ophiodes trapezium Guenée, 1852, Hist. Nat. Insectes, Spec. gén. Lépid. 7: 231.

Ophisma circumferens Walker, 1865, List Specimens lepid. Insects Colln Br. Mus., 33: 956.

Ophisma cognata Walker, 1865, List Specimens lepid. Insects Colln Br. Mus., 33: 958.

Ophiodes adusta Moore, 1882, Descr. new Indian lepid. Insects Colln W.S. Atkinson

Diagnosis

There is some sexual dimorphism, males being larger than females with paler brown basal halves to the wings. The forewing has a slight, double submarginal fascia, and centrally the fine, dark brown antemedial and postmedial fasciae form an approximated triangle round the faintly darker reniform, except the postmedial curves round basad over its anterior third and the fasciae converge but do not quite meet at the dorsum forming more of a trapezium.

Geographical range

Indo-Australian tropics to Queensland, Bismarcks and New Caledonia.

Habitat preference

Most records have been from disturbed forest or areas of cultivation from the coast of Brunei to the slopes of G. Kinabalu (Kundasan and Bundu Tuhan; 1050m and 1200m).

Biology

No information on early stages has been located, but the Australasian O. parcemacula Lucas, which shares some features of the male genitalia, particularly uncus structure, with trapezium, has been reared from Loranthaceae and Melaleuca (Myrtaceae) (Holloway, 1979; Common, 1990). The adult of trapezium pierces fruit (Wu, 1981; Bänziger, 1982).

Genitalia: