Brachycistis ioachinensis Bradley, 1917:267, ♂. Holotype ♂, Coalinga, Fresno County, California, June 1-3, 1907 (Cornell University, No. 120.1, leg. Bradley). - Wasbauer, 1973Wasbauer, M.S. 1973. The male brachycistidine wasps of the Nevada Test Site (Hymenoptera: Tiphiidae). Great Basin Naturalist 33 (2):109-112. (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).
Brachycistis rugosa Malloch, 1926:11 - 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.:1270 ( listed as synonym of Brachycistis ioachinensis Bradley, 1917).
Brachycistis subcarinata Malloch, 1926:11 - 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.:1270 ( listed as synonym of Brachycistis ioachinensis Bradley, 1917).
Brachycistis nigrifrons Malloch, 1926:16 - 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.:1270 ( listed as synonym of Brachycistis ioachinensis Bradley, 1917).
Brachycistis washingtona Malloch, 1926:21 - 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.:1270 ( listed as synonym of Brachycistis ioachinensis Bradley, 1917).