A survey of Dysderella Dunin, 1992 (Araneae, Dysderidae), with a new species from Iran

The dysderid spider genus Dysderella Dunin, 1992 is surveyed. The genus currently comprises two species: D. caspica (Dunin, 1990) from Azerbaijan and North Caucasus and D. transcaspica (Dunin & Fet, 1985) from Turkmenistan and north-eastern Iran. Herein, D. elburzica sp. nov. is described based on male specimens collected in Tehran Province, northern Iran. All three species are illustrated and their distributions are mapped.