Berta sp. 17868 Holloway sp. n.

A single female with facies similar to that of copiosa and zygophyxia was taken by Dr Chey Vun Khen in a Pinus caribaea plantation at Brumas near Sabah, together with B. copiosa. The genitalia have the lamella postvaginalis modified, the ostium broad, setae, and there is a large signum in the bursa.

It probably represents a distinct species: a single female (slide 17868) from Sumatra (illustrated) has also been located.