Journal of the Society of Entomology of British Columbia
The leaf-cutter bee, Megachile rotundata (F.) is a Eurasian species believed to have been introduced to North America on several occasions. It was recorded in Virginia in 1937, and since then has been recorded from Kansas, Missouri, Texas, California, Utah, Idaho, Nevada, Oregon, and Washington (Stephen, 1962).
Arrand, J. C. and Corner, J., "A Record of Megachile Rotundata from Ashcroft, British Columbia" (1968). An. Paper 27.
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