Changes

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[[Image:Horse Bot Fly.jpg|thumb|right|150px|Horse Bot Fly - Dennis Ray - Wikimedia Commons]]

[[Image:Horse Bot Fly.jpg|thumb|right|150px|Horse Bot Fly <small>(Image sourced from Dennis Ray, Wikimedia Commons)</small>]]

==Introduction==

==Introduction==

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[[Image:Gasterophilus larvae.jpg|150px|thumb|right|'''Gasterophilus larvae (Copyright Lamiot, Wikimedia Commons) ''']]

[[Image:Gasterophilus larvae.jpg|150px|thumb|right|'''Gasterophilus larvae''' <small>(Image sourced from Lamiot, Wikimedia Commons)</small>]]

==Identification==

==Identification==

The larvae then remain and develop within the stomach for around 10-12 months.  They mature in the following spring or early summer (generally between May and September), detach from their surface and are passed out in the host faeces. ''G. haemorrhoidalis'' also attaches to the rectal mucosa before being passed out.

The larvae then remain and develop within the stomach for around 10-12 months.  They mature in the following spring or early summer (generally between May and September), detach from their surface and are passed out in the host faeces. ''G. haemorrhoidalis'' also attaches to the rectal mucosa before being passed out.

[[Image:Gasterophilus.jpg|200px|thumb|right|'''Gasterophilus (Copyright Notafly, Wikimedia Commons) ''']]

[[Image:Gasterophilus.jpg|200px|thumb|right|'''Gasterophilus''' <small>(Image sourced from Notafly, Wikimedia Commons)</small>]]

The larvae then penetrate the soil, where they transform into pupae and the flies hatch 30 to 40 days later.

The larvae then penetrate the soil, where they transform into pupae and the flies hatch 30 to 40 days later.