Zamacrophya nigrilabris Rohwer, 1912:222, ♂♀. Holotype, Meadow Valley, Mexico (U.S.N.M., No. 14621, leg. C.H.T. Townsend). - Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 1. Symphyta and Apocrita (Parasitica). Smithsonian Institution Press, Washington D.C. 1-1198.:112 ( listed as synonym of Tenthredo ocampa Ross, 1951); Smith, 2003Smith, D.R. 2003. A synopsis of the sawflies (Hymenoptera: Symphyta) of America south of the United States: Tenthredinidae (Nematinae, Heterarthrinae, Tenthredininae). Transactions of the American Entomological Society 129 (1):1-45.:38 ( listed as synonym of Tenthredo ocampa Ross, 1951).
Tenthredo ocampa Ross, 1951:71 - Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 1. Symphyta and Apocrita (Parasitica). Smithsonian Institution Press, Washington D.C. 1-1198. (distribution); Smith, 2003Smith, D.R. 2003. A synopsis of the sawflies (Hymenoptera: Symphyta) of America south of the United States: Tenthredinidae (Nematinae, Heterarthrinae, Tenthredininae). Transactions of the American Entomological Society 129 (1):1-45. (distribution).