Difference between revisions of "Hydrotaea irritans"
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| − | + | [[Image:Hydrotaea irritans.jpg|thumb|right|150px|H.irritans female - Copyright Alan Hadley]] | |
| − | + | [[Image:Hydrotaea irritans male.jpg|thumb|right|150px|H.irritans male - Copyright Alan Hadley]] | |
| − | + | *Also known as the 'head fly' | |
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| − | Also known as | ||
| − | + | *''Hydrotaea irritans'' the main species of veterinary importance | |
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| + | *Mainly a problem of sheep | ||
| + | **In some areas it is the most numerous fly of cattle and horses | ||
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| + | ==Recognition== | ||
| + | *Similar to ''Musca spp.'' | ||
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| + | *Olive green abdomen | ||
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| + | *4-7mm in length | ||
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==Life Cycle== | ==Life Cycle== | ||
| − | + | *Eggs laid in decaying vegetation, faeces and in carrion (in the summer months) | |
| − | + | *Emerging larvae overwinter ([[WikiWords#D|'''diapause''']]) and pupate in spring | |
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| + | *Adult flies emerge in the summer | ||
| − | + | *'''One generation per year''' | |
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| − | + | ==Pathogenesis== | |
| + | *Cattle | ||
| + | **Evidence suggests that they transmit summer mastitis | ||
| − | [[Category: | + | *Sheep |
| + | **Cause extreme irritation | ||
| + | ***Mouthparts rasp the skin to feed on secretions and exudate | ||
| + | **Leads to self-inflicted damage | ||
| + | ***E.g. 'Broken Head' | ||
| + | **Secondary bacterial infection may occur | ||
| + | **[[Myiasis Producing Flies#Calliphoridae|Blowfly strike]] may follow[[Category:Parasites]][[Category:Nuisance Flies]] | ||
Revision as of 20:24, 27 March 2010
- Also known as the 'head fly'
- Hydrotaea irritans the main species of veterinary importance
- Mainly a problem of sheep
- In some areas it is the most numerous fly of cattle and horses
Recognition
- Similar to Musca spp.
- Olive green abdomen
- 4-7mm in length
Life Cycle
- Eggs laid in decaying vegetation, faeces and in carrion (in the summer months)
- Emerging larvae overwinter (diapause) and pupate in spring
- Adult flies emerge in the summer
- One generation per year
Pathogenesis
- Cattle
- Evidence suggests that they transmit summer mastitis
- Sheep
- Cause extreme irritation
- Mouthparts rasp the skin to feed on secretions and exudate
- Leads to self-inflicted damage
- E.g. 'Broken Head'
- Secondary bacterial infection may occur
- Blowfly strike may follow
- Cause extreme irritation