Megachile of Canada

Leafcutter and Mason Bees of the Genus Megachile Latreille (Hymenoptera: Megachilidae) in Canada and Alaska¹
CJAI 18 November 29, 2011
doi:10.3752/cjai.2011.18

Cory S. Sheffield*², Claudia Ratti*, Laurence Packer*, Terry Griswold**

*Department of Biology, York University 4700 Keele St., Toronto, ON M3J 1P3 coryshefield@yahoo.ca; cratti@yorku.ca; xeromelissa@mail.com. **USDA-ARS Bee Laboratory, Utah State Univ., Natural Resources Biology Bldg. Logan, UT 84322 Terry.Griswold@ars.usda.gov.

¹This paper is contribution #12 from the Canadian Pollination Initiative. ²Corresponding Author.

Acknowledgements
We thank Sue Westby (retired), Agriculture and Agri- Food Canada, Kentville, NS; John Ascher, American Museum of Natural History, NY; Sam Droege, USGS Patuxent Wildlife Research Center, Beltsville, MD; Felix Sperling, University of Alberta, Edmonton, AB; Steve Marshall, University of Guelph, Guelph, ON; John Huber, Andy Bennett, and Louise Dumouchel, Canadian National Collection of Insects, Ottawa, ON; Elizabeth Elle, Simon Fraser University, Vancouver, BC for providing specimens for study. Thanks also to Roy Larimer, Visionary Digital, VA for advice and assistance with imaging, and to members of the Packer lab, York University, especially Lincoln Best and Nicholai de Silva, for providing additional specimens from Canadian locations, and Miriam Richards, Brock University, St. Catharines, ON for helpful comments on earlier drafts of the key. Additional thanks to Steve Marshall and Sheila Dumesh for use of photographs, and for encouragement and support throughout this study. DNA barcoding was funded by the Canadian Barcode of Life Network
from Genome Canada (through the Ontario Genomics Institute), NSERC (Natural Sciences and Engineering Research Council of Canada) and other sponsors listed at www.BOLNET.ca. Funding for CSS was provided by the NSERC-CANPOLIN Network.