Rhexius schmitti is a species of ant-loving beetles in the family Staphylinidae. It is found in North America. The beetles are commonly found under organic materials like rotting wood and litter from leaves. References
Chandler, Donald S. (1997). "Family: Pselaphidae". A Catalog of the Coleoptera of America North of Mexico, ix + 118.
Further reading
Arnett, R.H. Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). (2002). American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea. CRC Press LLC, Boca Raton, FL. Arnett, Ross H. (2000). American Insects: A Handbook of the Insects of America North of Mexico. CRC Press. Richard E. White. (1983). Peterson Field Guides: Beetles. Houghton Mifflin Company.