Diplapion stolidum (Germar, 1817)

Distribution in Iran. Mazandaran (Sakenin et al. 2018).

General distribution. Algeria, Armenia, Austria, Azerbaijan, Belarus, Bosnia Herzegovina, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Great Britain, Greece, Hungary, Ireland, Italy, Kazakhstan, Latvia, Lithuania, Luxembourg, Macedonia, Moldova, Morocco, the Netherlands, Norway, Poland, Portugal, Romania, European Russia, western Siberia, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine.