D. P.  Koenig and Young, C. W., ?First observation of parasitic relations between big-headed flies, Nephrocerus Zetterstedt (Diptera: Pipunculidae) and crane flies, Tipula Linnaeus (Diptera: Tupulidae: Tipulinae), with larval and puparial descriptions for the genus Nephrocerus?, Proceedings of the Entomological Society of Washington, vol. 109, pp. 52-65, 2007.