a black-horned cleg fly, haematopota crassicornis, perching on a wooden fence post at the edge of woodland in the uk.

animal antennae background black blackhorned brown cleg close closeup color crassicornis detailed edge england essex eye fence flies fly forest genuine haematopota horned horse insect insects legs macro mottled natural nature outdoor parts perched perching post predator resting tabanidae waiting wild wildlife winged wings wood wooden woodland