Resumen
Detailed and updated distribution records are provided for Buchonomyia thienemanni Fittkau throughout its known western Palaearctic range including Europe, North Africa and the Near East. Two subfossil pupal records from former (dried-up) river channels are included. The species is recorded from Russia for the first time. A review of the known ecology is provided. The species is believed to be ectoparasitic on a species of Trichoptera and a likely host is suggested.