Arctornis bicalcaratus Holloway sp. n.

♂♂ 14,15mm. The facies and genitalia are much as in calcariphallus, but the longer spur on the aedeagus is more robust, straight, adpressed, and the smaller much more robust, hooked.

Holotype ♂

BORNEO: Sabah, Danum Valley, 5° 01N, 117° 47E, 18.x.1987, 100m, (A.H. Kirk-Spriggs) primary forest edge, BM lymantriid slide 2111.

Paratype ♂

As holotype but 20.x.1987, BM lymantriid slide 2110.

Geographical range

Borneo.

Habitat preference

Both specimens were taken at the edge of lowland dipterocarp forest in the Danum Valley Field Centre clearing.

Genitalia: