Ponometia erastrioides, the small bird-dropping moth or small bird lime moth, is a moth of the family Noctuidae.

It is found in North America, where it has been recorded from the eastern United States and south-central Canada (Quebec, Ontario, Saskatchewan).

[1] The habitat consists of fields, waste places and riparian areas.

The larvae feed on Ambrosia species.

Full-grown larvae reach a length of 25 mm.