Macrosaccus coursetiae is a moth of the family Gracillariidae.

[1] The larvae feed on Coursetia glandulosa.

[1] They mine the leaves of their host plant.

[1] Larvae are parasitized by Chrysocharis walleyi, a parasitoid wasp in the family (Eulophidae).

This article relating to moths in the subfamily Lithocolletinae is a stub.