Opius canaliculatus Gahan, 1915:80, ♀. Holotype ♀, College Park, Maryland, July 11, 1911 (U.S.N.M., No. 19364, leg. Gahan). - Wharton & Marsh, 1978Wharton, R.A. & P.M. Marsh 1978. New World Opiinae (Hymenoptera: Braconidae) parasitic on Tephritidae (Diptera). Journal of the Washington Academy of Sciences 68 (4):147-167. (distribution). - As Utetes canaliculatus: - Coronado-Blanco, 2013Coronado Blanco, J.M. 2013. La familia Braconidae (Hymenoptera) en México. Entomología mexicana 12 (1):31-46. (distribution).
Opius lectus Gahan, 1919:167, ♂♀. Holotype, Cherryfield, Maine, August 26, 1915 (U. S. Nat. Mus., No. 22378, leg. W. Colcord Woods). Synonymized with Opius canaliculatus Gahan, 1915 by Wharton & Marsh, 1978Wharton, R.A. & P.M. Marsh 1978. New World Opiinae (Hymenoptera: Braconidae) parasitic on Tephritidae (Diptera). Journal of the Washington Academy of Sciences 68 (4):147-167.:162. - Fischer, 1970Fischer, M. 1970. Die nearktischen Opiinae der Sammlung der Cornell University, Department of Entomology and Limnology, in Ithaca, New York (Hymenoptera, Braconidae). Anzeiger der Mathematisch-Naturwissenschaftlichen Klasse der Österreichischen Akademie der Wissenschaften 1970 (1):12-32. (distribution).
Opius lectoides Gahan, 1930:2 Synonymized with Opius canaliculatus Gahan, 1915 by Wharton & Marsh, 1978Wharton, R.A. & P.M. Marsh 1978. New World Opiinae (Hymenoptera: Braconidae) parasitic on Tephritidae (Diptera). Journal of the Washington Academy of Sciences 68 (4):147-167.:162.