Berta vaga Walker 

Thalera vaga Walker, 1861, List Specimens lepid. Insects Colln. Br. Mus., 22: 598.

Diagnosis

The ground colour is an unusual pale yellow-green with subbasal, discal, postmedial and marginal markings in darker green.

Taxonomic Notes

The male genitalia of this species and B. philippina Prout stat. n. from Palawan are very similar, but the latter, originally described as a subspecies of B. chrysolineata Walker, has facies of the typical Berta type.

Geographical range

Borneo, Sumatra (Heterocera Sumatrana Colln).

Habitat preference

Three specimens were taken during the Mulu survey: two at 500m on hill dipterocarp forest on G. Mulu and one at 250m in forest on the lower slopes of the limestone G. Api.

Genitalia: