This is a bibliographic reference for content in the New York Metropolitan Flora Project.

• Rajotte, E. G. 1979 . Nesting, foraging and pheromone response of the bee Colletes validus Cresson and its association with lowbush blueberries. (Hymenoptera: Colletidae) (Ericaceae: Vaccinium). J. Kansas Entomol. Soc. 52: 349-61.