Bombus, IMPATIENS

Rozen, Jerome G., Smith, Corey Shepard, Kocher, Sarah & Wyman, Eli S., 2018, Developmental Biology among Corbiculate Bees: Bombus impatiens, Including Observations on Its Egg Eclosion, American Museum Novitates 2018 (3912), pp. 1-25 : 18

PUPA OF BOMBUS IMPATIENS

The pupa of B. impatiens corresponds in all respects with that of B. pennsylvanicus De Geer ) (as B. americanorum (Fabricius)) and B. vosnesenskii Radoszkowski based on characters identified by Michener (1954). That is to say, there are no pupal features of the head or mesosoma except for the legs. The following description refers to the pupal features shared by these three species. Specimens of only female pupae of B. impatiens were available.

DESCRIPTION: All coxae with inner apical spine; all trochanters with posterior apical spine. Metasomal terga 2–5 each with apical row of fine long spicules.

MATERIAL STUDIED: 7 pupae from nest purchased 2–3 weeks earlier from Biobest , collected 29 Nov. 2017 at Princeton University , by all of us. Fifteen pupae from nest purchased from Biobest, collected 11 January 2018 at the American Museum of Natural History by two of us J.G. R. and C.S. S .