Originally compiled by the Atlas of Vermont from numerous sources. See http://vermont.lifedesks.org/biblio for a full bibliography for the project.

Plasterer Bees - Photo (c) Nadja Baumgartner, some rights reserved (CC BY-NC), uploaded by Nadja Baumgartner Comprehensive check list for Plasterer Bees (Family Colletidae)
Source: Atlas of Vermont LIfe. (n.d.). Retrieved December 21, 2012, from http://vermont.lifedesks.org (Link)
kueda Added by kueda on December 24, 2012