Tabanus autumnalis – Large Marsh Horsefly Large Marsh Horsefly - Tabanus autumnalis Large Marsh Horsefly - Tabanus autumnalis Large Marsh Horsefly - Tabanus autumnalis Large Marsh Horsefly - Tabanus autumnalis Large Marsh Horsefly - Tabanus autumnalis Large Marsh Horsefly - Tabanus autumnalis Large Marsh Horsefly - Tabanus autumnalis