Onebala euargyra is a moth in the family Gelechiidae.

[1] It is found in Australia, where it has been recorded from Queensland.

The forewings are whitish, on the dorsal half suffused with fuscous and with a short fuscous strigula on the costa at one-third and another on the middle.

There is an elongate-triangular fuscous spot on the costa at two-third, as well as a broad silvery transverse line from the termen beyond the tornus to near the costa before the apex and there are four longitudinal black streaks beyond this, as well as a black terminal line.

This article on a moth of the subfamily Dichomeridinae is a stub.