Strongylogaster nigricans Norton, 1868:223, ♂♀. 3 ♂♂, 3 ♀♀, Cuantla, tierra fav., Mexico (leg. H. de Saussure); Smith, 1971Smith, D.R. 1971. The neotropical sawflies described by Norton and Cresson, with lectotype designations (Hymenoptera: Symphyta). Transactions of the American Entomological Society 97 (4):521-535.:526, Lectotype ♀ (Muséum d'Histoire Naturelle, Geneva Switzerland). - Cresson, 1880Cresson, E.T. 1880. Catalogue of the Tenthredinidae and Uroceridae of North America. Transactions of the American Entomological Society 8:53-68. (distribution); Kirby, 1882Kirby, W.F. 1882. List of Hymenoptera, with descriptions and figures of the typical specimens in the British Museum. Vol. I. Tenthredinidae and Siricidae. London: British Museum :xxviii + 450 pp., pls i-vi. (distribution); Cameron, 1883-1888Cameron, P. 1883-1888. Biologia Centrali-Americana - Insecta. Hymenoptera. (Families Tenthredinidae-Chrysididae). Taylor and Francis, Red Lion Court, Fleet Street. 487 pp., 20 pl. (distribution), 16 (listed); Dalla Torre, 1894Dalla Torre, C.G. 1894. Catalogus Hymenopterorum. Vol. I: Tenthredinidae incl. Uroceridae (Phyllophaga & Xylophaga). G. Engelmann, 459. (distribution). - As Stromboceridea nigricans: - Muesebeck et al., 1951Muesebeck, C.F.W., K.V. Krombein & H.K. Townes 1951. Hymenoptera of America north of Mexico - Synoptic catalog. U.S. Dept. Agr. Monog. 2:1-1420. (distribution); Smith, 1971Smith, D.R. 1971. The neotropical sawflies described by Norton and Cresson, with lectotype designations (Hymenoptera: Symphyta). Transactions of the American Entomological Society 97 (4):521-535.:527 (comb. nov.); 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).
Selandria curialis Cresson, 1880:15, ♀. ♀, Mexico (leg. Sumichrast); Smith, 1971Smith, D.R. 1971. The neotropical sawflies described by Norton and Cresson, with lectotype designations (Hymenoptera: Symphyta). Transactions of the American Entomological Society 97 (4):521-535.:530, Type ♀ (Academy of Natural Sciences of Philadelphia, No. 188). Synonymized with Stromboceridea nigricans (Norton, 1868) by Muesebeck et al., 1951Muesebeck, C.F.W., K.V. Krombein & H.K. Townes 1951. Hymenoptera of America north of Mexico - Synoptic catalog. U.S. Dept. Agr. Monog. 2:1-1420.:24. - Cresson, 1880Cresson, E.T. 1880. Catalogue of the Tenthredinidae and Uroceridae of North America. Transactions of the American Entomological Society 8:53-68. (distribution); Kirby, 1882Kirby, W.F. 1882. List of Hymenoptera, with descriptions and figures of the typical specimens in the British Museum. Vol. I. Tenthredinidae and Siricidae. London: British Museum :xxviii + 450 pp., pls i-vi. (distribution); Cameron, 1883-1888Cameron, P. 1883-1888. Biologia Centrali-Americana - Insecta. Hymenoptera. (Families Tenthredinidae-Chrysididae). Taylor and Francis, Red Lion Court, Fleet Street. 487 pp., 20 pl. (distribution), 18 (listed); Dalla Torre, 1894Dalla Torre, C.G. 1894. Catalogus Hymenopterorum. Vol. I: Tenthredinidae incl. Uroceridae (Phyllophaga & Xylophaga). G. Engelmann, 459. (distribution); Smith, 1971Smith, D.R. 1971. The neotropical sawflies described by Norton and Cresson, with lectotype designations (Hymenoptera: Symphyta). Transactions of the American Entomological Society 97 (4):521-535.:530 ( listed as synonym of Stromboceridea nigricans (Norton, 1868)); 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.:42 ( listed as synonym of Stromboceridea nigricans (Norton, 1868)).
Stromboceros leucostomus Rohwer, 1911:395 Synonymized with Stromboceridea nigricans (Norton, 1868) by Muesebeck et al., 1951Muesebeck, C.F.W., K.V. Krombein & H.K. Townes 1951. Hymenoptera of America north of Mexico - Synoptic catalog. U.S. Dept. Agr. Monog. 2:1-1420.:24. - 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.:42 ( listed as synonym of Stromboceridea nigricans (Norton, 1868)).