FIGURES 11–19 in Nesting biology and immature stages of the panurgine bee genera Rhophitulus and Cephalurgus (Apoidea: Andrenidae: Protandrenini)

FIGURES 11–19. SEM micrographs of postdefecating larva of Rhophitulus xenopalpus. 11, 12. Head, frontal and approximate lateral views, respectively; atp = anterior tentorial pit. 13. Entire larva, lateral view. 14. Abdominal segments 3–5 of another larva, lateral view, demonstrating pronounced dorsal sclerites mounting paired dorsal tubercle. 15. Posterior end, showing paired low dorsal swelling on T10, posterior view. 16. Abdominal segment 3, left side, demonstrating apical texture of paired dorsal tubercle and distinction between the integument of transverse sclerotic bands and wrinkled membranous integument separating bands of one segment from those of preceding and following segments. 17. Close up of rectangle of figure 16 demonstrating texture of wrinkled membranous area and firmer smooth area. 18. Close up of lateral lobe and surrounding area of abdominal lobe of abdominal segment 3. 19. Spiracle of abdominal segment 8, demonstrating lack of raised atrial rim.