DiogmaDiogma is a genus of crane flies in the family Cylindrotomidae.BiologyThe larvae of the genus Diogma live on mosses. Adults are to be found in damp wooded habitats.DistributionPalaearctic.SpeciesDiogma brevifurca Alexander, 1949Diogma caudata Takahashi, 1960Diogma dmitrii Paramonov, 2005Diogma glabrata Diogma minuticornis Diogma sinensis Yang & Yang, 1995