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Photo#1084575
Physocyclus californicus - male

Physocyclus californicus - Male
Pinnacles National Park, Bear Gulch, San Benito County, California, USA
June 5, 2015
This is a rather uncommon species. The adult males are easily recognized by their massive palpal femora (visible here). A small aggregation of these spiders was recently found in the park and to confirm their identity, a female was collected under permit as part of the Pinnacles Spider Inventory and identified based on the fine details of her reproductive structures.