Prosoeca is a genus of tangle-veined flies in the family Nemestrinidae.

It was described in 1867 by Ignaz Rudolph Schiner.

[2] It was assigned to the family Nemestrinidae by Frank M. Carpenter in 1992;[3] and to the subfamily Nemestrininae by Mike Mostovski and Xavier Martínez-Delclòs in 2000.

[4] The genus Prosoeca has at least 41 species: One extinct species in a subgenus of Prosoeca exists:

This article related to members of the fly superfamily Nemestrinoidea is a stub.