Porsica ingens inopinata Walker

Porsica ingens Walker, 1866, List Specimens lepid. Insects Colln Brit. Mus. 35: 1823.

Porsica ingens Walker; Kiriakoff 1968: 26.

Diagnosis

25-26 mm. This subspecies differs from the typical race in lacking a central dark lunule to the forewing reniform and in the reduction of the dark brown areas along the forewing dorsum. In the male genitalia the uncus is tapering rather than squarish; the juxta has a small central notch rather than a large, v-shaped cleft; the harpe has the two projections equal in size rather than the ventral one being smaller.

Holotype ♂

BRUNEI: Labi, 75 m, Rempayoh primary forest, Feb. 1982 (Lt. Col. M.G. Allen) BM notodontid slide 929.

Paratypes

• 1 ♂ SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D. Holloway et al.), BM 1978-206, Site 15, February, Camp 2.5, Mulu, 1000 m, 413461, lower montane f.
• 1 ♂, same general data but Site 13, February, Camp 2, Mulu, 500 m, 401464, mixed dipterocarp forest.

Geographical Range

N.E. Himalaya; Borneo, Peninsular Malaysia (Bukit Kutu).

Habitat Preference

The few records indicate that primary forest is preferred, from the lowlands to at least the lower montane zone.

Biology

Gardner (1943) described the larva of the typical race. The head is dull yellow with black markings. The body is smoky white or pale brown above with irregular dark brown lines; it is more blackish laterally and ventrally. The stematopods are dull yellow. The host-plant is Antidesma (Stylaginaceae).

Genitalia: