Hedychridium amabile Cockerell, 1903:262, sex not indicated.Mesilla Park, N. M., on campus of Agricultural College, May 8, 1900 (leg. Cockerell); Bohart & Kimsey, 1978Bohart, R.M. & L.S. Kimsey 1978. A revision of the New World species of Hedychridium (Hymenoptera, Chrysididae). Proceedings of the Biological Society of Washington 91 (3):590-635.:597, Holotype ♀ (USNM, Washington); Kimsey, 2006Kimsey, L.S. 2006. California Cuckoo Wasps in the Family Chrysididae (Hymenoptera). University of California Press, Berkeley, Los Angeles, London. 1-311.:38, Holotype ♀ (USNM). - Bohart & Kimsey, 1978Bohart, R.M. & L.S. Kimsey 1978. A revision of the New World species of Hedychridium (Hymenoptera, Chrysididae). Proceedings of the Biological Society of Washington 91 (3):590-635. (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); Kimsey, 2006Kimsey, L.S. 2006. California Cuckoo Wasps in the Family Chrysididae (Hymenoptera). University of California Press, Berkeley, Los Angeles, London. 1-311. (distribution).
Hedychridium azurellum Bohart, in Bohart & Kimsey, 1978:601, ♂♀. Holotype ♂, Deep Springs, Inyo Co., California, 13 May 1974 (UCD, leg. R.M. Bohart); Kimsey, 2006Kimsey, L.S. 2006. California Cuckoo Wasps in the Family Chrysididae (Hymenoptera). University of California Press, Berkeley, Los Angeles, London. 1-311.:38, Holotype ♂ (UCDC). - Bohart & Kimsey, 1978Bohart, R.M. & L.S. Kimsey 1978. A revision of the New World species of Hedychridium (Hymenoptera, Chrysididae). Proceedings of the Biological Society of Washington 91 (3):590-635. (distribution); Kimsey, 2006Kimsey, L.S. 2006. California Cuckoo Wasps in the Family Chrysididae (Hymenoptera). University of California Press, Berkeley, Los Angeles, London. 1-311.:39 ( listed as synonym of Hedychridium amabile Cockerell, 1903).