Orange Co., CA. 8/27/86. © Peter J. Bryant

Robber fly

Mallophora fautrix

Diptera: Asilidae

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Fullerton Arboretum 8-10-06. © Ron Hemberger

Mason Park, Irvine, Orange County, CA. 8-20-07. © Ron Hemberger

Orange Co., CA. 8/27/86. © Peter J. Bryant

Fullerton Arboretum, Fullerton, Orange County, CA. 9/22/07. © Ron Hemberger

UCI Arboretum, Irvine, Orange County, CA. 8-23-08. © Ron Hemberger

UCI Arboretum, Irvine, Orange County, CA. 8-23-08. © Ron Hemberger

Female, building egg case. Fullerton Arboretum, Fullerton, Orange County, CA. 8-28-10. © Ron Hemberger

Female, building egg case. Fullerton Arboretum, Fullerton, Orange County, CA. 8-28-10. © Ron Hemberger

Female laying eggs. San Joaquin Freshwater Marsh, Irvine, Orange County, CA. 8-9-13. Copyright Ron Hemberger  

Eggs. San Joaquin Freshwater Marsh, Irvine, Orange County, CA. 8-9-13. Copyright Ron Hemberger  

Male. Fullerton Arboretum, Fullerton, Orange County, CA. 8-28-10. © Ron Hemberger

San Joaquin Marsh, Irvine, Orange County, California, USA. July 10, 2013. © Ron Hemberger