A synoptic review of the ants of California (Hymenoptera: Formicidae). Ward, P. S. Zootaxa 2005 936 1 68 6RTDC urn:lsid:biosci.ohio-state.edu:osuc_concepts:32277 Insecta Formicidae Myrmecocystus Animalia Myrmecocystus semirufus Emery Hymenoptera Arthropoda species semirufus   E2 [endemic to California floristic province (Hickman, 1993)]