Xylocopa orpifex Smith, 1874:298, ♂♀. Ackerman, 1916Ackerman, A.J. 1916. The Carpenter-Bees of the United States of the genus Xylocopa. Journal of the New York Entomological Society 24 (3):196-232.:212, Type (probably in the British Museum). - Smith, 1874Smith, F. 1874. Monograph of the genus Xylocopa, Latr. Transactions of the Royal Entomological Society of London :247-302. (distribution); Fox, 1893Fox, W.J. 1893. Report on some mexican Hymenoptera, principally from lower California. Proceedings of the California Academy of Sciences ser.2 (4):1-25. (distribution); Dalla Torre, 1896Dalla Torre, C.G. 1896. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, X. Apidae (Anthophila). Sumptibus Guilelmi Engelmann, 1-643. (distribution); Cockerell, 1899Cockerell, T.D.A. 1899. Catálogo de las Abejas de Mexico. Biblioteca Agricola de las Secretaria de Fomento, Mexico, 1-20. (distribution); Cockerell, 1903Cockerell, T.D.A. 1903. A catalogue of the bees of California. Psyche 10:74-78. (distribution); Cockerell, 1903Cockerell, T.D.A. 1903. North-American bees, and a new Homopteron. The Annals and Magazine of Natural History ser. 7: v. 12:442-455. (distribution); Cockerell, 1904Cockerell, T.D.A. 1904. The bees of southern California. V. Bulletin of the Southern California Academy of Science 3 (6):86-90. (distribution); Cockerell, 1912Cockerell, T.D.A. 1912. New records of bees (Hymen.). Entomological News 23:444-447. (distribution); Cockerell, 1916Cockerell, T.D.A. 1916. Descriptions and records of bees. - LXXI. The Annals and Magazine of Natural History ser. 8: v. 17:277-287. (distribution); Ackerman, 1916Ackerman, A.J. 1916. The Carpenter-Bees of the United States of the genus Xylocopa. Journal of the New York Entomological Society 24 (3):196-232. (distribution); Cockerell, 1925Cockerell, T.D.A. 1925. Bees in the collection of California Academy of Sciences. Proceedings of the California Academy of Sciences ser. 4: v. 14 (11):185-215. (distribution); Cockerell, 1942Cockerell, T.D.A. 1942. Collecting wild bees in the Yosemite. The Pan-Pacific Entomologist 18:136-139. (distribution). - As Xylocopa orpifera: [lapsus] - 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.:2184 (lapsus calami). - As Xylocopa orpifera: [lapsus] - 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.:2184 (lapsus calami). - As Xylocopa orpifex orpifex: - Michener, 1940Michener, C.D. 1940. A new carpenter bee from the Great Basin Region (Hymenoptera, Xylocopidae). Bulletin of the Southern California Academy of Science 39:126-127. (distribution). - As Xylocopa orpitex: [lapsus] - 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.:2184 (lapsus calami). - As Xylocopa orpitex: [lapsus] - 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.:2184 (lapsus calami). - As Xylocopa tabaniformis orpifex: - Hurd, 1955Hurd, P.D. Jr. 1955. The carpenter bees of California (Hymenoptera: Apoidea). Bulletin of the California insect survey 4 (2):35-72. (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); Brindis, 2019Brindis, A.F. 2019. . Dissertation , , 1-143. La Paz, Baja California Sur. (distribution).