Proventricular structure in solitary bees (Hymenoptera: Apoidea)
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Elsevier Organisms Diversity & Evolution
Abstract
Proventricular structure, analyzed by scanning electronic microscopy, is compared among 28 species of solitary bees representing four families. Observations on the shapes of proventricular folds and on hair-like cuticular projections are presented, discussed, and suggested as useful to future studies of bee systematics.