Loboceras hippolyte Kirby, 1882:80, ♀. Holotype ♀, Brazil: 'Amazons' (BMNH). - Dalla Torre, 1894Dalla Torre, C.G. 1894. Catalogus Hymenopterorum. Vol. I: Tenthredinidae incl. Uroceridae (Phyllophaga & Xylophaga). G. Engelmann, 459. (distribution). - As Aulacomerus hippolyte:
Loboceras xanthostigma Cameron, 1883:56 Synonymized with Aulacomerus hippolyte (Kirby, 1882) by Smith, 1990Smith, D.R. 1990. A synopsis of the sawflies (Hymenoptera, Symphyta) of America south of the United States: Pergidae. Revista Brasileira de Entomologia 34:7-200.:140. - 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), 56 (listed); Dalla Torre, 1894Dalla Torre, C.G. 1894. Catalogus Hymenopterorum. Vol. I: Tenthredinidae incl. Uroceridae (Phyllophaga & Xylophaga). G. Engelmann, 459. (distribution). - As Loboceros xanthostigmus:
Loboceras trimaculatum Rohwer, 1911:381, ♀. Holotype ♀, Costa Rica: Piedros Negras (U.S.N.M., no. 13988, leg. Schild & Burgdorf). Synonymized with Aulacomerus hippolyte (Kirby, 1882) by Smith, 1990Smith, D.R. 1990. A synopsis of the sawflies (Hymenoptera, Symphyta) of America south of the United States: Pergidae. Revista Brasileira de Entomologia 34:7-200.:140. - As Loboceras trimaculatus: