Aphaenogaster sp. - Aphaenogaster occidentalis
North of Danville; Mt. Diablo foothills, Contra Costa County, California, USA
December 22, 2010
Had to point-and-shoot these. Nest series collected from beneath a rock in a disturbed oak grassland, which was heavily foraged by cattle.
I was unable to ID this using Creighton, and I no longer have Umphrey's review of the picea complex. Neither does this specimen (and her sisters) key well, nor does it match any Californian species from Ward's list.
Her plurae are heavily sculpted; the pronotal disk is smooth and shining. Help is greatly appreciated.
Images of this individual: tag all