FIGURES 11–13. Osmia chalybea. 11 in Nesting and Developmental Biology of the Cleptoparasitic Bee Stelis ater (Anthidiini) and Its Host, Osmia chalybea (Osmiini) (Hymenoptera: Megachilidae)

FIGURES 11–13. Osmia chalybea. 11. Photograph of adult female. 12. Microptic photograph of cocoon, front end up, lateral view. 13. Close-up of nipple of same with outer cocoon layer removed and cap pried up to show outer screen beneath, near lateral view. FIGURES 14–16. Stelis ater. 14. Photograph of adult female. 15. Microptic photograph of entire cocoon, front end up, lateral view. 16. Microphotograph of same, showing characteristic elongate fecal pellets, lateral view.