|Ox warble fly (Hypoderma bovis)|
|Unrecognized taxon ():||Hypoderma (fly)|
A warble fly is a large fly of the genus Hypoderma. It is an ectoparasite on horses, sheep, goats and humans. They lay their eggs on the front legs of large animals. They bore their way in, causing damage and distress. They have been eliminated from European countries, but reinfestations occur regularly.