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Pogonomyrmex pima

● W McCartney & N Cox Rd, Casa Grande [Pinal Co], AZ USA [el. 440 m / 1444 ft] (LOC: A19098) view location in Google Maps » ● 3/10/2019 11:37AM mostly sunny, air temp: 24°C / 75°F

[IMAGE 3 of 3] 5 or 6 workers could be seen foraging singly, or performing nest maintenance at this location. This worker is cautiously emerging from the nest entrance.

ADDITIONAL NOTES/REFERENCES: Pogonomyrmex pima is a member of the Ephebomyrmex species group and is easily confused with the very similar Pogonomyrmex imberbiculus. P. imberbiculus is differentiated from P. pima by the presence (in P. imberbiculus) of a prominent, forwardly directed projection in front of each antennal fossa, and with the dorsum of the petiolar node (in P. imberbiculus) being coarsely rugo-reticulate. P. pima workers are rather small - approx. 3.5 to 4.0mm in length . They are docile, and forage singly at a moderately slow but steady pace, as they retrieve seeds and dead insects/insect parts.

From Pogonomyrmex pima