Descriptions of the mature larva and pupa of Camptopoeum (Camptopoeum) friesei Mocsáry are presented as are the descriptions of the mature oocytes and postdefecating larva of its cleptoparasite, Parammobatodes minutus (Mocsáry). The larva of C. friesei is compared to that of C. (Camptopoeum) clypeare Morawitz and C. (Camptopoeum) frontale (Fabricius), as is the mature oocyte of P. minutus with that of P. rozeni Schwarz. The descriptions of the pupa of C. friesei and the mature larva of P. minutus are the first such accounts for their respective genera.