A new corinnid species of the genus Aetius Pickard-Cambridge (Araneae: Corinnidae) from Sarawak, Borneo.

Aetius bicuspidatus sp. nov. (Araneae: Corinnidae) is described here on the basis of male and female specimens collected from the Lambir Hills National Park, Sarawak, Borneo. The posterior carapace is elongated with bicuspid edge in both male and female. This character condition is very unique among Aetius species. [ABSTRACT FROM AUTHOR]