Epyris flavicrus Kieffer, 1910:36, Evans, 1969Evans, H.E. 1969. A revision of the genus Epyris in the Americas (Hymenoptera: Bethylidae). Transactions of the American Entomological Society 95 (2):181-352.:345, Plesiallotype ♀ (BPBM); Evans, 1969Evans, H.E. 1969. A revision of the genus Epyris in the Americas (Hymenoptera: Bethylidae). Transactions of the American Entomological Society 95 (2):181-352.:345, Type ♂ (Berlin Mus., no. 179). - Evans, 1969Evans, H.E. 1969. A revision of the genus Epyris in the Americas (Hymenoptera: Bethylidae). Transactions of the American Entomological Society 95 (2):181-352. (distribution); Murgas & González, 2006Santos Murgas, A. & P.E. González D. 2006. Dostrobicón de especies de la subfamilia Epyrinae (Hymenoptera: Bethylidae) en Panamá. Tecnociencia 8 (2):37-50. (distribution); Rasmussen & Asenjo, 2009Rasmussen, C. & A. Asenjo 2009. A checklist to the wasps of Peru (Hymenoptera, Aculeata). ZooKeys 15:1-78. (distribution).
Epyris tabascoensis Evans, 1967:99, Evans, 1969Evans, H.E. 1969. A revision of the genus Epyris in the Americas (Hymenoptera: Bethylidae). Transactions of the American Entomological Society 95 (2):181-352.:345, Type ♂ (BMNH). Synonymized with Epyris flavicrus Kieffer, 1910 by Evans, 1969Evans, H.E. 1969. A revision of the genus Epyris in the Americas (Hymenoptera: Bethylidae). Transactions of the American Entomological Society 95 (2):181-352.:345.