Stomphastis chalybacma is a moth of the family Gracillariidae.

It is known from India, Indonesia (Sulawesi), Malaysia (West Malaysia and Sabah), Myanmar, Sri Lanka and Thailand.

[1] The larvae feed on Caesalpinia decapetala, Caesalpinia pulcherrima and Samanea saman.

They probably mine the leaves of their host plant.

This article relating to the family Gracillariidae is a stub.