Nest and immatures of the South American anthidiine bee Notanthidium (Allanthidium) chilense (Urban) (Apoidea, Megachilidae). (American Museum novitates, no. 3826)

Abstract

A nest of the leaf-cutter bee Notanthidium (Allanthidium) chilense (Urban) (Anthidiini) is described and illustrated, the second such account for the genus. The nest, presumably constructed from resin, consisted of four cells and was attached to a stem of the plant genus Baccharis (Asteraceae) in the high Andes of northern Chile. The cells held two postdefecating larvae, a male pupa, and an emerged adult female, all in cocoons, permitting the first descriptions of the immature stages and cocoon for the genus. To the extent possible the immatures are compared with those of other tribal members.