Hesperilla flavescens, also known as the yellow sedge-skipper or yellowish skipper, is a species of butterfly in the family Hesperiidae.

It is found in the Australian states of South Australia and Victoria.

The larvae feed on Gahnia filum.

The butterfly is endangered in South Australia, and volunteers have planted gahnia at Aldinga Washpool to provide habitat for the species.

This Hesperiidae-related article is a stub.