OXAEINAE

Rozen, Jerome G., 2018, Nesting Biologies and Mature Larvae of Oxaeine Bees (Apoidea: Andrenidae), American Museum Novitates 2018 (3893), pp. 1-32 : 26

PUPAE OF OXAEINAE

Figures 45–47

Roberts (1973) described and illustrated the pupa of O. flavescens , and Rozen and Rozen (2010) described the male and female pupae of P. gloriosa . Pupae of the two taxa are obviously very similar. Indeed, all of the minute tubercles identified by letters on the pupa of O. flavescens can also be observed on pupal P. gloriosa except for “h,” a feature of questionable homology. The pupae of the two taxa can be distinguished because in P. gloriosa the dorsal surface of mesothorax in lateral view (fig. 45) has the scutellum projecting dorsally beyond the curvature of scutum, unlike the even curvature of the mesothorax of O. flavescens ( Roberts, 1973: fig. 7). With pupae of both taxa, the midlegs of females (fig. 46) have tibiae and basitarsi much thicker than those of males (fig. 47). Because of the close agreement of known mature larvae of the three oxaeine genera as well as that of pupae of P. gloriosa and O. flavescens , the pupa of M. nigerrima will likely be similar to those already known.

MATERIAL STUDIED: Protoxaea gloriosa : one male and one female: Arizona: Pima Co.: 5 mi E. Sahuarita, VII-27 & V-5, 1989, as postdefecating larvae, pupated VI-23-1990 (J.G. Rozen and R. L. Foster). Oxaea flavescens: One male and one female: COLOMBIA: Meta: near Puerto Lopez, Hacienda Mozambique , December 1, 1971 ( R. B. Roberts) .