Large Marsh Horsefly - Tabanus autumnalis


    Wing length is 13 to 16 mm and about 16 to 22 mm in body length. Tabanus autumnalis is a medium sized species of biting horse-fly. It is somewhat scarce compared to T. bromius and T. bovinus. It is quite a distinctive species with pale triangle markings on a dark body.

    Similar Species

    Tabanus bromius is similar but smaller with a body length around 14 or 15 mm. Tabanus bovinus on the other hand is largr than t. autumnalis, with a body length of 25 to 30 mm.

    Identification difficulty

    Wet grassland and marshy areas, especially when cattle are present.

    When to see it

    Peaking in June and July.

    UK Status

    This species which has previously been rather uncommon in Britain now seems to be extending its range.

    VC55 Status

    Status in Leicestershire and Rutland not known.

    Leicestershire & Rutland Map

    MAP KEY:

    Yellow squares = NBN records (all known data)
    Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

    UK Map