The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.
- F. M. Carpenter. 1992. Treatise on Invertebrate Paleontology, Part 4 Arthropoda 4: Superclass Hexapoda. The Geological Society America, Inc. & University of Kansas, Boulder, Colorado and Lawrence, Kansas, USA 3 and 4
Hilty, J. Editor. 2013. Insect Visitors of Illinois Wildflowers. World Wide Web electronic publication. illinoiswildflowers.info, version (11/2013)
See: Abbreviations for Insect Activities, Abbreviations for Scientific Observers, References for behavioral observations
- Michener, Charles D. 2000. The Bees of the World. xiv + 913
- Michener, Charles D. 2007. The Bees of the World, Second Edition. xvi + 953