Tachysphex unicolor (Panzer, 1809)

Distribution in Iran: Alborz, Ardabil, Sistan-o Baluchestan (Ebrahimi 2005, 2014), Mazandaran (Ebrahimi 2014).

General distribution: Afghanistan, Algeria, Austria, Belarus, Belgium, Bulgaria, Canary Islands, China, Croatia, Czech Republic, Egypt, France, Germany, Great Britain, Greece, Hungary, Iran, Israel, Italy, Kazakhstan, Luxembourg, Libya, Malta, Morocco, Netherlands, Poland, Portugal, Romania, Russia, Slovakia, Slovenia, Spain, Switzerland, Turkey, Turkmenistan, Ukraine.