An updated version of the checklist by Penny & Byers (Penny, N.D. and G.W. Byers. 1979. A check-list of the Mecoptera of the world. Acta Amazonica 9:365-388), with brief family descriptions and distribution data. (Detailed description provided by vbelov 29 January 2010.)http://researcharchive.calacademy.org/research/entomology/Entomology_Resources/mecoptera/index.htm
Link updated (at last) 2 July 2020.