The Greenhead Horse Fly

  • The greenhead horse fly, Tabanus nigrovittatus, lives in coastal marsh habitats from Texas to Nova Scotia
    (Hansens 1979)

  • Females can lay the first batch of around 200 eggs without a blood meal, but need to attack vertebrates to lay a second clutch of eggs
    (Magnarelli & Stoffolano 1980)

  • The larvae develop 3-9 months as top invertebrate predators in the marsh soil

  • Their abundance depends on the health of the invertebrate food web around them in the mud of the tidal marshes