Robber Fly (Promachus nigrialbus) with prey

Male Promachus nigrialbus Martin, 1970. Thanks to Eric Fisher for providing the species determination on bugguide. Found at Santa Rita Experimental Range. Santa Cruz County, Arizona, USA.

 

Prey is another robber, a beautiful little Megaphorus.

 

Single exposure, uncropped, handheld, in situ. Canon MT-24EX flash unit, Ian McConnachie diffuser.

Done