Thomas E. Riley Wilderness Park, Coto de Caza, Orange County, CA. 6-16-07. © Ron Hemberger		 Leafcutter (Mason?) Bee

Osmia sp.

Hymenoptera: Megachilidae

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Thomas E. Riley Wilderness Park, Coto de Caza, Orange County, CA. 6-30-07. © Ron Hemberger
Thomas E. Riley Wilderness Park, Coto de Caza, Orange County, CA. 6-30-07. © Ron Hemberger

Thomas E. Riley Wilderness Park, Coto de Caza, Orange County, CA. 6-30-07. © Ron Hemberger
Thomas E. Riley Wilderness Park, Coto de Caza, Orange County, CA. 6-30-07. © Ron Hemberger

Nix Nature Center, Laguna Beach, Orange County, CA. 5-25-10. © Ron Hemberger
Thomas E. Riley Wilderness Park, Coto de Caza, Orange County, CA. 5-18-13. © Ron Hemberger

Thomas E. Riley Wilderness Park, Coto de Caza, Orange County, CA. 5-18-13. © Ron Hemberger