Appearance
Wing length is 13–16 mm and about 16–22 mm in body length.References:
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Large Marsh Horse Fly
Tabanus autumnalis
"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.
