Tabanus sudeticus, also known as the dark giant horsefly, is a species of biting horse-fly.[5][6] It is the heaviest fly in Europe.[7]
The dark giant horsefly's length is around 20-25 millimeters.[8] They have uniform dark brown eyes.[8]
Dark giant horseflies are a common species to be found buzzing around cows and horses.[8] They usually only suck blood from those horses and cows, avoiding humans.[8] They fly with a very loud buzzing.[8][9]
Tabanus sudeticus is found in many countries of Western Europe. It has a marked northern and western distribution; being found as far north as southern Norway and the Western Isles of Scotland, and with an occasional record from Belarus.[10]
Tabanus sudeticus, also known as the dark giant horsefly, is a species of biting horse-fly. It is the heaviest fly in Europe.