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'''[[Calliphoridae|''Calliphoridae'']]
 
'''[[Calliphoridae|''Calliphoridae'']]
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'''[[Chrysomya bezziana|''Chrysomya bezziana'']]
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===Screw Worm Myiasis===
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[[Image:Screw Worm.jpg|right|thumb|150px|Screw worm larvae - John Kucharski - Wikimedia Commons]]
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*''C. bezziana'' cause myiasis in both animals and humans
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*Located mainly in tropical regions
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*Larvae are '''obligate''' parasites
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'''Recognition'''
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*Similar to ''Calliphora spp.''
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**Iridescent
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**Clear wings
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**Blue abdomen
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*Longitudinal stripes on thorax
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*Larvae have bands of spines
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**Look like screws
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'''Life cycle'''
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*Eggs laid in wounds or body cavities
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*Larvae feed as colonies
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*Larvae drop to the ground to pupate
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'''Pathogenesis'''
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*Spiracles are exposed as larvae feed which expands the wound
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**Creates a foul smelling lesion
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*Cause irritation and pyrexia
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'''Control'''
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*In the USA
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**Mass eradication through the release of sterile males
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**Currently only persists where flies have migrated across the Mexican border
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*In Africa
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**Introduced into Libya through the importation of infested livestock
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**Sterile males released
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**Eradication occurred in 1991
       
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