Chandler, P.J., 1977. Notes on British fungus gnats of the sub-families Ditomyiinae, Bolitophilinae, Diadocidiinae, Manotinae and Keroplatinae (Dipt., Mycetophilidae). Entomologist's Monthly Magazine, 113, pp.31-44. Available at: http://www.online-keys.net/sciaroidea/1971_80/Chandler_1977_British_fungus_gnats.pdf.