Brychius elevatus (Panzer, 1793)

Brychius cristatus J.R. Sahlberg, 1875 .

Distribution in Iran. Guilan (Bodemeyer 1927).

General distribution. Albania, Luxembourg, Russia (Southern European Territory), Switzerland (Vondel 2013), Austria, Belgium, Bosnia Herzegovina, Bulgaria, Byelorussia, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Great Britain, Iraq, Ireland, Italy, Latvia, Liechtenstein, Netherlands, Norway, Poland, Romania, Russia (Central and Northern European Territory, East and West Siberia), Slovakia, Slovenia, Spain, Sweden, Ukraina, former Yugoslavia (Vondel 2005), Iran (Bodemeyer 1927), Kyrgyzstan (Vondel 2007).

Comments. Living in oxygen-rich brooks, streams and rivers (Vondel 1997). Bodemeyer (1927) reports this species from an algae-rich pond in the Elbruz Mountains.