Genus Hydrachna Müller

Hydrachna cruenta (Müller)

Iranian records: West Azarbayan (Güri-Göl Lake), East Azarbayan, Gilan Province – Sepasgosarian (1999).

Distribution: Holarctic.

Hydrachna skorikowi Piersig

Iranian records: Esfahan Province – Pesic et al. (2004b). Distribution: Palaearctic.

Hydrachna sepasgozariani Bader

Iranian records: West Azarbayan Province (Güri-Göl Lake) – Bader (1981). Distribution: Iran.