标题：Preliminary study of the bumble bee Bombus griseocollis, its eggs, their eclosion, and its larval instars and pupae (Apoidea, Apidae, Bombini). (American Museum novitates, no. 3898)
摘要：This paper describes and illustrates the egg, fifth, first, and fourth larval instars, as well as the female pupa of Bombus (Cullumanobombus) griseocollis (DeGeer), all collected from a single nest in June 2017 in Wisconsin. In so doing, attempts are made to understand the biological significance of the anatomical and behavioral features of these various life stages.
