Hey Gordon,
These guys were on the east end of the Joshua Tree Nat'l park just off the road that breaks off the I10 at Desert Center (middle of nowhere). 
Are they pogo's? I have one shot with a P. rugosus worker for an idea of the size. They are no more than 3/8 inch long. Half the size of (bulk) of a small P. Californicus, which were also in the area but much larger than most P. Cali's I've ever seen.
Let me know what you think....




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