Rhagonycha campestris is a species of soldier beetles in the family Cantharidae. It is found in North America.
References
Delkeskamp, Kurt (1977). "Cantharidae". Coleopterorum Catalogus Supplementa, pars 165, fasc. 1, 485.
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.