Phazaca cesena Swinhoe comb. n.

Gathynia cesena Swinhoe, 1861, Trans. ent. Soc. Lond., 1902: 598.

Diagnosis

This is one of the two Bornean representatives of the group of species, mostly Australasian, with a prominent white zone along the hindwing costa.

It is smaller than its congener, a darker, more uniform grey with the hindwing postmedial fine, red, extending into the costal white zone.

The postmedials of both wings are closer to the margin in the female.

Taxonomic Notes

The most easterly member of this group is P. cythera Swinhoe comb. n. from Fiji.

Geographical range

Borneo.

Habitat preference

The holotype male is from the low-lying southern Bornean island of Pulo Laut.

A female has been taken subsequently by S. J. Willott in primary lowland dipterocarp forest at 170m near the Danum Valley Field Centre, Sabah.

Genitalia: