This horse fly is present in most of Europe and in the Near East (Caucasia, Turkey, Iran) .[6][7]
Description
The adult females grow up to 18 millimetres (0.71 in) long. Their large compound eyes are bright green, without hairs and ocular bands. The terminal of antennae is brownish-black. The thorax is dark-brown and quite hairy. The abdomen has clearer bands at the end of each black tergite. Wings and legs are yellowish-brown. Halteres are brownish-yellow.[8][9]
Biology
These common horse flies can be encountered in Summer in high mountain at an altitude of over 2000 meters during the daylight hours, when they mainly feed on nectar of flowers (especially of Apiaceae species). Females attack mainly horses and cattle.
^Chvála, Milan; Lyneborg, Leif; Moucha, Josef (1972). The Horse Flies of Europe (Diptera, Tabanidae). Copenhagen: Entomological Society of Copenhagen. pp. 598pp, 164figs. ISBN978-09-00-84857-5.