Eggs of the greater wax moth,Galleria mellonella(L.), and the Angoumois grain moth,Sitotroga cerealella(Olivier), were evaluated as hosts for mass-rearingTrichogramma pretiosumRiley,T. evanescensWestwood, andT. minutumauctt., not Riley 1871. Numbers of femaleT. pretiosumandT. evanescensproduced from eggs of the 2 hosts did not differ significantly, butS. cerealellaproduced twice as manyT. minutumas didG. mellonella. Female wasps reared from eggs of the greater wax moth traveled 5.6–6.4 cm/min faster and lived 6.1–11.1 h longer than those from eggs of the Angoumois grain moth.