species 1,758 observations

Large Marsh Horse Fly

Tabanus autumnalis

Field notes

Tabanus autumnalis, the large marsh horsefly, is a medium-sized species of biting horse-fly. It is somewhat scarce compared to T. bromius and T. bovinus. This species shows slightly more of a preference for coastal marsh than some of the other European Tabanus, sometime even found in saltmashes.

Read more on Wikipedia

Range

United States

Greener is more native, amber more introduced; paler is less certain. How this was decided