Ancyloscelis sejuncta Cockerell, 1933:1, ♂. ♂, Colorado: Regnier, Baca County, June 6-7, 1919 (leg. F.E. Lutz); Michener, 1942Michener, C.D. 1942. North american bees of the genus Ancyloscelis (Hymenoptera, Anthophoridae). The Pan-Pacific Entomologist 18 (3):108-113.:112, Type ♂ (American Museum of Natural History). - As Ancylosceles sejuncta: - As Ancyloscelis sejunctus: - Michener, 1942Michener, C.D. 1942. North american bees of the genus Ancyloscelis (Hymenoptera, Anthophoridae). The Pan-Pacific Entomologist 18 (3):108-113. (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); Esperanza de Pedro, 2021Esperanza de Pedro, D. 2021. . :. (distribution).
Ancylosceles maculifera Cockerell, 1934:8, ♂. ♂, Texas: Bexar Co., May 6, 1932 (The American Museum of Natural History, leg. H.B. Parks). Synonymized with Ancyloscelis sejunctus Cockerell, 1933 by Michener, 1942Michener, C.D. 1942. North american bees of the genus Ancyloscelis (Hymenoptera, Anthophoridae). The Pan-Pacific Entomologist 18 (3):108-113.:111. - As Ancyloscelis maculifera: - 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.:2119 ( listed as synonym of Ancyloscelis sejunctus Cockerell, 1933).