Hedychrum continuum Aaron, 1885:224, ♂♀. 6 ♂♀, Nevada, California, Washington Territory; Kimsey, 2006Kimsey, L.S. 2006. California Cuckoo Wasps in the Family Chrysididae (Hymenoptera). University of California Press, Berkeley, Los Angeles, London. 1-311.:84, Lectotype ♂ (ANSP). Synonymized with Holopyga hora Aaron, 1885 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. - Aaron, 1885Aaron, F. 1885. The North American Chrysididae. Transactions of the American Entomological Society of Philadelphia 12:209-248. (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); Kimsey, 2006Kimsey, L.S. 2006. California Cuckoo Wasps in the Family Chrysididae (Hymenoptera). University of California Press, Berkeley, Los Angeles, London. 1-311.:84 ( listed as synonym of Holopyga horus Aaron, 1885).
Holopyga horus Aaron, 1885:220, ♂♀. 4 ♂♀, Montana and Nevada; Kimsey, 2006Kimsey, L.S. 2006. California Cuckoo Wasps in the Family Chrysididae (Hymenoptera). University of California Press, Berkeley, Los Angeles, London. 1-311.:84, Lectotype ♀ (ANSP). - Aaron, 1885Aaron, F. 1885. The North American Chrysididae. Transactions of the American Entomological Society of Philadelphia 12:209-248. (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); Kimsey, 2006Kimsey, L.S. 2006. California Cuckoo Wasps in the Family Chrysididae (Hymenoptera). University of California Press, Berkeley, Los Angeles, London. 1-311. (distribution). - As Holopyga hora: - 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); Portuondo Ferrer & Fernández Triana, 2004Portuondo Ferrer, E. & J.L. Fernández Triana 2004. Biodiversidad del orden Hymenoptera en los macizos montañosos de Cuba oriental. Boletín de la Sociedad Entomológica Aragonesa 35:121-136. (distribution).