Irvine Regional Park, Orange, Orange County, CA. 5/3/13. © Ron Hemberger.		 Leafcutter Bee

Hymenoptera: Megachilidae; subfamily Megachilinae; Tribe Osmiini

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Irvine Regional Park, Orange, Orange County, CA. 5/3/13. © Ron Hemberger.
Silverado Canyon, Orange County, CA. 3/28/14. © Ron Hemberger.

Silverado Canyon, Orange County, CA. 3/28/14. © Ron Hemberger.