Caltoris cahira austeni

Caltoris cahira austeni, the Austen's swift, is a species of skipper butterfly found in Asia.

Description
"Male and Female. Upperside dark brown. Male: forewing with two small semi-hyaline white spots at end of the cell, two before the apex, and three obliquely on the disk, the two upper of which are small. Female with markings the same, but slightly larger ; also with a small yellow spot above the hind margin; cilia cinereous-white. Underside as above; both sexes having also a slight yellowish patch above the hind margin."

- Edward Yerbury Watson

It is found in the Khasi Hills, Sikkim and Cherrapunji.