DOI: https://doi.org/10.2478/v10058-009-0012-z
Cymatosus icarus Kameneva, sp. n. from Costa Rica is described. It differs from the four previously described species by the wing pattern with an additional arcuate hyaline stripe parallel to the wing margin, and a rounded brown spot in the middle of the wing disc, resembling that in Callistomyia icarus Osten Sacken (Tephritidae). A key to the species of the genus Cymatosus Enderlein and notes on other species are provided.