Bastilla arcuata Moore

Ophiusa arcuata Moore, 1877, Proc. zool. Soc. Lond

Diagnosis

See previous species.

Geographical range

Oriental Region to Sundaland, Seram, New Guinea.

Habitat preference

Four records have been from lowland forest in Brunei the G. Mulu area and the Barito Ulu of Kalimantan Tengah, and one was from secondary forest after recent logging near the Danum Valley Field Centre. A sixth was from 1000m on G. Mulu.

Biology

The larva has been described by Gardner (1947) and Bell (MS). It is typical of the genus. The head is brown with whitish yellow spots, and there is an almost circular black spot on the frons. The body is generally brown, dotted darker, the setae on yellow chalazae, ringed with black. The lateral area of A1 is yellowish. The posterior of the ridge across A8 is black, and its tubercles are salmon-pink. There is a black band ventrally for the length of the larva. The pupa has a powdery bloom of bluish white.

Host plants recorded (Bell; Holloway & Miller, 2003) are Glochidion and Phyllanthus (Euphorbiaceae).

The adult is a fruit piercer in Thailand (Bänziger, 1982; Kuroko & Lewvanich, 1993).