Genus Cratyna Winnertz, 1867

Type species: Cratyna atra Winnertz, 1867: 167, fig. 7.

Literature: Tuomikoski (1960): 31–41 (as Plastosciara); Hippa et al. (1998): 1–86 (as Pseudozygoneura); Menzel & Mohrig (1998): 362 (as Cratyna Winnertz); Mohrig (1999): 167–182; Menzel & Mohrig (2000): 185–191; Mohrig (2004): 141– 144; Vilkamaa & Hippa (2005): 457–480; Mohrig & Menzel (2014): 138–143; Shin et al. (2014): 344–354; Huang et al. (2015): 77–95 (as Pseudozygoneura).

The genus currently contains the following subgenera: Cratyna WinnertZ, 1867 s. str. (distributed worldwide), Diversicratyna MenZel & Mohrig, 1998 (mainly Holarctic), Peyerimhoffia Kieffer, 1903 (Holarctic), Pictosciara Mohrig, 2004 (Southern hemisphere) and Spathobdella Frey, 1948 (Holarctic) .