Hedychrum ventrale Say, 1824:330,Pennsylvania; Kimsey, 2006Kimsey, L.S. 2006. California Cuckoo Wasps in the Family Chrysididae (Hymenoptera). University of California Press, Berkeley, Los Angeles, London. 1-311.:89, Type sex unknown, destroyed. - Cresson, 1862Cresson, E.T. 1862. Catalogue of the described species of North American Hymenoptera (Continued from page 211.). Proceedings of the Entomological Society of Philadelphia 1 (8):227-238. (distribution). - As Hedychrum ventralis: - As Holopyga ventralis: - Norton, 1879Norton, E. 1879. On the Chrysides of North America. Transactions of the American Entomological Society 7:233-242. (distribution); Dalla Torre, 1892Dalla Torre, C.G. 1892. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VI: Chrysididae (Tubulifera). Breitkopf & Härtel, Leipzig. 1-118. (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); Bischoff, 1913Bischoff, H. 1913. Hymenoptera. Fam.Chrysididae. In: Wytsman (Ed.). Genera Insectorum. 1-86. (distribution); Alayo, 1973Alayo, P.D. 1973. Catálogo de los Himenopteros de Cuba. Instituto Cubano del libro, La Habana. 1-218. (distribution); 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 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209. (distribution); Zayas, 1982Zayas, F. de 1982. Sección Oligoneoptera - Orden Hymenoptera - Orden Strepsiptera. Editorial Científico-Técnica, Ciudad de la Habana. 1-111. (distribution); Kimsey, 2006Kimsey, L.S. 2006. California Cuckoo Wasps in the Family Chrysididae (Hymenoptera). University of California Press, Berkeley, Los Angeles, London. 1-311. (distribution); Perez-Gelabert, 2008Perez-Gelabert, D.E. 2008. Arthropods of Hispaniola (Dominican Republic and Haiti): A checklist and bibliography. Zootaxa 1831:1-530. (distribution); Conrow et al., 2016Conrow, R.T., K.M. Zivicki & G.P. Setliff 2016. Cuckoo wasps of Pennsylvania (Hymenoptera: Chrysididae). Transactions of the American Entomological Society 142 (10):113-129. (distribution); Perez-Gelabert, 2020Perez-Gelabert, D.E. 2020. Checklist, bibliography and quantitative data of the arthropods of Hispaniola. Zootaxa 4749:1-668. (distribution).
Hedychrum asperum Brullé, 1846:52, ♀. ♀, l'Amérique septentrionale (leg. M. Serville); Kimsey, 2006Kimsey, L.S. 2006. California Cuckoo Wasps in the Family Chrysididae (Hymenoptera). University of California Press, Berkeley, Los Angeles, London. 1-311.:89, Holotype ♀ (MNHN). Synonymized with Holopyga ventralis (Say, 1824) by 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 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209.:1225. - Norton, 1879Norton, E. 1879. On the Chrysides of North America. Transactions of the American Entomological Society 7:233-242. (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.:458 ( listed as synonym of Hedychrum violaceum Brullé, 1846); Alayo, 1973Alayo, P.D. 1973. Catálogo de los Himenopteros de Cuba. Instituto Cubano del libro, La Habana. 1-218.:101 ( listed as synonym of Hedychrum violaceum Brullé, 1846). - As Hedychrum aspera: - Kimsey, 2006Kimsey, L.S. 2006. California Cuckoo Wasps in the Family Chrysididae (Hymenoptera). University of California Press, Berkeley, Los Angeles, London. 1-311.:89 ( listed as synonym of Holopyga ventralis (Say, 1824)).
Holopyga Dohrni Dahlbom, 1854:48, Kimsey, 2006Kimsey, L.S. 2006. California Cuckoo Wasps in the Family Chrysididae (Hymenoptera). University of California Press, Berkeley, Los Angeles, London. 1-311.:89, Holotype ♂ (MZLU); Rosa & Vårdal, 2015Rosa, P. & H. Vårdal 2015. An annotated catalogue of the types of Chrysididae (Hymenoptera) at the Swedish Museum of Natural History, Stockholm, with brief historical notes. ZooKeys 495:79-132.:118, Paralectotype ♂ (Naturhistoriska Riksmuseet Stockholm, NHRS-HEVA000001075); Rosa & Vårdal, 2015Rosa, P. & H. Vårdal 2015. An annotated catalogue of the types of Chrysididae (Hymenoptera) at the Swedish Museum of Natural History, Stockholm, with brief historical notes. ZooKeys 495:79-132.:118, Paralectotype ♂ (Naturhistoriska Riksmuseet Stockholm, NHRS-HEVA000001076). - Cresson, 1865Cresson, E.T. 1865. On the Hymenoptera of Cuba. Proceedings of the Entomological Society of Philadelphia 4:200 pp. (distribution); Norton, 1879Norton, E. 1879. On the Chrysides of North America. Transactions of the American Entomological Society 7:233-242.:235 ( listed as synonym of Holopyga ventralis (Say, 1824)); 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); Ducke, 1911Ducke, A. 1911. Terzo supplemento alla revisione die crisididi dello stato Brasiliano del Pará. Bolletino dei Musei di Zoologia e Anatomia Comparada dela R. Universita di Torino 41:89-115. (distribution); Alayo, 1973Alayo, P.D. 1973. Catálogo de los Himenopteros de Cuba. Instituto Cubano del libro, La Habana. 1-218.:100 ( listed as synonym of Holopyga ventralis (Say, 1824)); 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 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209.:1225 ( listed as synonym of Holopyga ventralis (Say, 1824)); Kimsey, 2006Kimsey, L.S. 2006. California Cuckoo Wasps in the Family Chrysididae (Hymenoptera). University of California Press, Berkeley, Los Angeles, London. 1-311.:89 ( listed as synonym of Holopyga ventralis (Say, 1824)); Perez-Gelabert, 2008Perez-Gelabert, D.E. 2008. Arthropods of Hispaniola (Dominican Republic and Haiti): A checklist and bibliography. Zootaxa 1831:1-530.:230 ( listed as synonym of Holopyga ventralis (Say, 1824)); Rosa & Vårdal, 2015Rosa, P. & H. Vårdal 2015. An annotated catalogue of the types of Chrysididae (Hymenoptera) at the Swedish Museum of Natural History, Stockholm, with brief historical notes. ZooKeys 495:79-132.:118 ( listed as synonym of Holopyga ventralis (Say, 1824)); Perez-Gelabert, 2020Perez-Gelabert, D.E. 2020. Checklist, bibliography and quantitative data of the arthropods of Hispaniola. Zootaxa 4749:1-668.:310 ( listed as synonym of Holopyga ventralis (Say, 1824)).
Holopyga compacta Cresson, 1865:304, sex not indicated. Holotype, Colorado Territory, 1864 (leg. Mr. James Ridings); Kimsey, 2006Kimsey, L.S. 2006. California Cuckoo Wasps in the Family Chrysididae (Hymenoptera). University of California Press, Berkeley, Los Angeles, London. 1-311.:89, Holotype ♀ (ANSP). - 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 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209.:1225 ( listed as synonym of Holopyga ventralis (Say, 1824)); Kimsey, 2006Kimsey, L.S. 2006. California Cuckoo Wasps in the Family Chrysididae (Hymenoptera). University of California Press, Berkeley, Los Angeles, London. 1-311.:89 ( listed as synonym of Holopyga ventralis (Say, 1824)).