Tachysphex costae (De Stefani, 1882)

Distribution in the Arabian Peninsula: Oman (Hamer 1986, 1988), United Arab Emirates (Hamer 1986, 1988; Gillett & Gillett 2005; Howarth & Gillett 2008), Yemen (Pulawski 2007).

Extralimital distribution: Mediterranean basin, north to southern France, Romania and Hungary, east to Kazakhstan, Transcaspian region, and western Pakistan, China, south to South Africa.