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Genus Xerophasma Cockerell, 1923

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  • Xerophasma Cockerell, 1923Cockerell, T.D.A. Two nocturnal bees and a minute Perdita. American Museum Novitates 66:1-4.:1. Type species: Xerophasma bequaerti Cockerell, 1923Cockerell, T.D.A. Two nocturnal bees and a minute Perdita. American Museum Novitates 66:1-4. [ = Perdita bequaertiana Cockerell, 1951], by original designation and monotypy.

  • Keys: TimberlakeTimberlake, P.H. A revisional study of the bees of the genus Perdita F. Smith, with special reference to the fauna of the Pacific Coast (Hymenoptera, Apoidea). Part I. University of California Publications In Entomology 9 (6):345-432.:349; Griswold & MillerGriswold, T. & W. Miller A revision of Perdita (Xerophasma) Timberlake (Hymenoptera: Andrenidae). Zootaxa 2517:1-14.:4;