Xenoglossodes wilmattæ Cockerell, 1917:191, ♀. ♀, Point Isabel (leg. W.P. Cockerell); LaBerge, 2001LaBerge, W.E. 2001. Revision of the bees of the genus Tetraloniella in the New World (Hymenoptera: Apidae). Illinois Natural History Survey Bulletin 36 (1-3):67-162.:95, Holotype ♀ (CAS, No. 15,555). - Lutz & Cockerell, 1920Lutz, F.E. & T.D.A. Cockerell 1920. Notes on the distribution and bibliography of North American bees of the families, Apidae, Meliponidae, Bombidae, Euglossidae, and Anthophoridae. Bull. Amer. Mus. Nat. Hist 42 (15):491-641. (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). - As Tetraloniella wilmattae: - LaBerge, 2001LaBerge, W.E. 2001. Revision of the bees of the genus Tetraloniella in the New World (Hymenoptera: Apidae). Illinois Natural History Survey Bulletin 36 (1-3):67-162. (distribution), 93 (comb. nov.); Esperanza de Pedro, 2021Esperanza de Pedro, D. 2021. . :. (distribution).
Xenoglossodes pallidicauda Cockerell, 1934:11, ♀. 2 ♀♀, Texas: southeast Bexar Co. (The American Museum of Natural History, leg. H.B. Parks); LaBerge, 2001LaBerge, W.E. 2001. Revision of the bees of the genus Tetraloniella in the New World (Hymenoptera: Apidae). Illinois Natural History Survey Bulletin 36 (1-3):67-162.:95, Holotype ♀ (AMNH). Synonymized with Tetraloniella wilmattae (Cockerell, 1917) by LaBerge, 2001LaBerge, W.E. 2001. Revision of the bees of the genus Tetraloniella in the New World (Hymenoptera: Apidae). Illinois Natural History Survey Bulletin 36 (1-3):67-162.:93. - 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).