Brown Ambrosia Aphid

Uroleucon rudbeckiae

Hemiptera: Aphididae

On Mulefat (Baccharis salicifolia) at San Joaquin Freshwater Marsh, Irvine, Orange County, CA. 11/18/06

Photos Copyright: Peter J. Bryant (pjbryant@uci.edu). Contact for originals.

Species identified by Nick Nisson, County Entomologist, Orange County

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