Figs. 23–26 in Investigations on the Biologies and Immature Stages of the Cleptoparasitic Bee Genera Radoszkowskiana and Coelioxys and Their Megachile Hosts (Hymenoptera: Apoidea: Megachilidae: Megachilini)

Figs. 23–26. Photographs of feeding larval instars of Radoszkowskiana rufiventris. 23. First instar three days after collection as egg, on partly consumed host egg. 24. Second instar of same individual with opaque, yellowish abdomen, two days later, and chorion of completely consumed host egg. 25. Probably third instar, different individual; note shiny chorion of host egg to the left of its forebody. 26. Fourth instar of same individual as in figs. 23, 24, nine days after being collected as egg; two days later, larvae became fifth instar.