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==Introduction==

==Introduction==

The species ''Gasterophilus'', is more commonly referred to as the 'Bot fly.'  It is an obligate parasite found on horses, donkeys, mules, zebras and elephants.   

The species ''Gasterophilus'' is of the family [[Oestridae]], and is more commonly referred to as the 'Bot fly.'  It is an obligate parasite found on horses, donkeys, mules, zebras and elephants.   

Infection is particularly common in horses, with around 30-60% infected during the winter months.

Infection is particularly common in horses, with around 30-60% infected during the winter months.