Pupae of the following cleptoparasitic Apidae are described and compared with pupae of other cleptoparasitic members in that family: Neolarra (Neolarra) californica Michener and N. (Phileremulus) vigilans (Cockerell) (Neolarrini); Holcopasites (Trichopasites) insoletus (Linsley) (Ammobatoidini); Osiris pallidus Smith? (Osirini); Mesoplia (Mesoplia) rufipes (Perty) and M. (Eumelissa) species (Ericrocidini); Isepeolus viperinus (Holmberg) (Isepeolini); and Xeromelecta (Melectomorpha) californica (Cresson) and Thyreus species? (Melectini). Pupae of the Neolarrini and Ammobatoidini have not been described before, nor has the pupa of Mesoplia although the pupa of the related Ericrocis is known. The pupa of Isepeolus was briefly described before but not illustrated. The pupa of Xeromelecta californica was illustrated earlier but not described. A preliminary generic key to known pupae of cleptoparasitic Apoidea exclusive of the Sphecidae is presented.