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There are six common genera of Ceratopogonidae in tropical America, and many less common.

Bezzia and Stilobezzia are predatory.

Culicoides are usually parasitic on vertebrates.

Forcipomyia and Atrichopogon are frequently parasitic on invertebrates. Forcipomyia (Lasiohelea) is parasitic on vertebrates; the only North American species feeds on frogs.

Dasyhelea are neither predatory nor parasitic.

The last picture is probably Forcipomyia, but probably not Lasiohelea.