Euchrysia hyalinipennis Ashmead, 1896:231, ♀.Argus Mountains, Death Valley, Panamint Valley and Los Angeles, California; Texas and St. Louis, Mo.; Gibson, 2003Gibson, G.A.P. 2003. Phylogenetics and classification of Cleonyminae (Hymenoptera: Chalcidoidea: Pteromalidae). Memoirs on Entomology, International 16:1-339.:72, Holotype ♀ (USNM, 3334). - Ashmead, 1896Ashmead, W.H. 1896. Descriptions of new parasitic Hymenoptera. Transactions of the American Entomological Society and Proceedings of the Entomological Section of the Academy of Natural Sciences 23:179-234. (distribution); 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); 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). - As Chalcedectus hyalinipennis: - Gibson, 2003Gibson, G.A.P. 2003. Phylogenetics and classification of Cleonyminae (Hymenoptera: Chalcidoidea: Pteromalidae). Memoirs on Entomology, International 16:1-339. (distribution), 72 (comb. nov.).
Euchrysia similis Girault, 1917:15, ♀. Holotype ♀, Lawrence, Kan., June 18, 1896 (U. S. Nat. Museum, No. 20,464, leg. Hugo Kahl); Gibson, 2003Gibson, G.A.P. 2003. Phylogenetics and classification of Cleonyminae (Hymenoptera: Chalcidoidea: Pteromalidae). Memoirs on Entomology, International 16:1-339.:72, Holotype ♀ (USNM, 20464). - Gibson, 2003Gibson, G.A.P. 2003. Phylogenetics and classification of Cleonyminae (Hymenoptera: Chalcidoidea: Pteromalidae). Memoirs on Entomology, International 16:1-339.:72 ( listed as synonym of Chalcedectus hyalinipennis (Ashmead, 1896)).