Holcopelte productus Ashmead, 1894:172, Lectotype ♀, examined (USNM, No. 2144), designated by Hansson et al., 2004Hansson, C., A. Aebi & B. Benrey 2004. Horismenus species (Hymenoptera: Eulophidae) in a bruchid beetle parasitoid guild, including the description of a new species. Zootaxa 548:1-16.:13. - Ashmead, 1894Ashmead, W.H. 1894. Report on the Parasitic Cynipidae, part of the Braconidae, the Ichneumonidae, the Proctotrypidae, and part of the Chalcididae. - Part II. Journal of the Linnean Society of London (Zoology) 25:108-188. (distribution); Ashmead, 1900Ashmead, W.H. 1900. Report upon the aculeate Hymenoptera of the islands of St. Vincent and Grenada, with additions to the parasitic Hymenoptera and a list of the described Hymenoptera of the West Indies. Transactions of the Entomological Society of London pt. II:207-367. (distribution); Hansson, 2011Hansson, C. 2011. Catalogue of the Eulophidae in the neotropical region (2009 updated 2011). :1-78.:22 ( listed as synonym of Horismenus ashmeadii (Dalla Torre, 1898)). - As Holcopelte producta: - Dalla Torre, 1898Dalla Torre, C.G. 1898. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, V. Chalcididae et Proctotrupidae. Sumptibus Guilelmi Engelmann, VII + 598. (distribution); Cockerell, 1899Cockerell, T.D.A. 1899. A first list of the hymenopterous families Tenthredinidae, Siricidae, Chrysididae, Proctotrypidae, Cynipidae, Chalcididae and Braconidae collected in New Mexico. Transactions of the Kansas Academy of Sciences 16:212-216. (distribution). - As Horismenus productus: - 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); Ruíz-Cancino & Coronado-Blanco, 2002Ruíz-Cancino, E. & J.M. Coronado-Blanco 2002. Artrópodos terrestres de los estados de Tamaulipas y Nuevo León, México. Serie Publicaciones Cientificas No. 4:1-376. (distribution); González-Hernández, 2004González-Hernández, A. 2004. Actualización del catálogo de autoridades taxonómicas: Hymenoptera-Parasítica. Depto. de Zoología de Invertebrados. Facultad de Ciencias Biológicas, UANL. Base de datos SNIB-Conabio proyecto BE008. México. D.F. :. (distribution); Coronado et al., 2005Coronado Blanco, J.M., E. Ruíz Cancino & S.N. Myartseva 2005. Chalcidoidea (Hymenoptera) de Taumalipas, México (excepto Encyrtidae). In: Lonzano L.B., A.C. Sandoval, J.V. Horta Vega & J.G. Jiménez (Ed.). Biodiversidad, Tamaulipeca Vol. 1. 156-160. (distribution); Noyes, 2019Noyes, J.S. 2019. Universal Chalcidoidea Database. World Wide Web electronic publication. :. (distribution).
Holcopelte Ashmeadii Dalla Torre, 1898:28, no descr. Replacement name for Holcopelte productus Ashmead, 1894 by Dalla Torre, 1898Dalla Torre, C.G. 1898. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, V. Chalcididae et Proctotrupidae. Sumptibus Guilelmi Engelmann, VII + 598.:28 (nec Trans. Amer. Entom. Soc. 1894). - Dalla Torre, 1898Dalla Torre, C.G. 1898. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, V. Chalcididae et Proctotrupidae. Sumptibus Guilelmi Engelmann, VII + 598. (distribution). - As Horismenus ashmeadi: - Ruíz et al., 2004Ruíz Cancino, E., J.M. Coronado Blanco, S.N. Myartseva & J.F. Luna Salas 2004. Adenda a Chalcidoidea (Hymenoptera). In: Bousquets, J.L., J.J. Morrone, O.Y. Ordóñez & I.V. Fernández (Ed.). Biodiversidad, Taxonomía y Biogeografía de artrópodos de México: Hacia una síntesis de su conocimiento. Volumen IV. 725-734. (distribution). - As Horismenus ashmeadii: - Hansson, 2011Hansson, C. 2011. Catalogue of the Eulophidae in the neotropical region (2009 updated 2011). :1-78. (distribution); Noyes, 2019Noyes, J.S. 2019. Universal Chalcidoidea Database. World Wide Web electronic publication. :. (distribution).