Difference between revisions of "Hippoboscidae"

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(Created page with '*Also known as louse flies *The two genera of veterinary importance are ''Hippobosca'' and ''Melophagus'' ===''Hippobosca'' spp.=== *Also known as forest flies *Only parasit…')
 
(Redirected page to Category:Hippoboscidae)
 
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*Also known as louse flies
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#REDIRECT[[:Category:Hippoboscidae]]
 
 
*The two genera of veterinary importance are ''Hippobosca'' and ''Melophagus''
 
 
 
 
 
===''Hippobosca'' spp.===
 
 
 
*Also known as forest flies
 
 
 
*Only parasitises horses and cattle
 
 
 
*Only found in the Old World
 
 
 
*Large numbers found around the perineum and inner thighs
 
 
 
 
 
'''Recognition'''
 
*1cm long
 
 
 
*Reddish brown
 
 
 
*Yellow spots on thorax and abdomen
 
 
 
*Clear wings
 
 
 
*Reduced wings with veins crowded towards anterior margins
 
**Not a strong flier
 
 
 
*Forward pointing proboscis which can be retracted into head when not feeding
 
**Both males and females suck blood
 
 
 
 
 
'''Life cycle'''
 
*Adults are on the wing between May and October
 
 
 
*Adults mate on the host
 
 
 
*Single larvae laid in soil or damp humus
 
 
 
*Adult flies emerge the following spring
 
 
 
 
 
'''Pathogenesis'''
 
*Irritation and annoyance from bites
 
 
 
*Mechanical vectors of non-pathogenic ''Trypanosoma theileri'' in cattle
 
 
 
 
 
'''Control'''
 
*Topical [[Ectoparasiticides|insecticide]] application
 
**Repellents with residual action
 
 
 
 
 
===''Melophagus'' spp.===
 
 
 
*Also known as sheep ked
 
 
 
*Found worldwide
 
 
 
*Bites sheep and goats
 
**A separate species is found on deer
 
 
 
 
 
'''Recognition'''
 
*4-6mm long
 
 
 
*Hairy
 
 
 
*Forward pointing proboscis
 
 
 
*Short head
 
 
 
*Reddish brown colouring
 
 
 
*Dorso-ventrally flattened
 
 
 
*'Tick-like' in appearance
 
 
 
*'''Wingless'''
 
 
 
*Strong legs and claws
 
 
 
 
 
'''Life cycle'''
 
*Whole life cycle spent '''on''' the host
 
**Adults may survive for 1 week off the host
 
 
 
*Single larvae laid on fleece which pupate
 
 
 
*Adult keds emerge a '''few weeks to a few months''' after pupating depending on environmental temperature
 
 
 
 
 
'''Pathogenesis'''
 
*Most numerous in '''autumn and winter'''
 
 
 
*Located in the superficial layers of the fleece
 
**This aids transmission
 
 
 
*Long wooled breeds are most susceptible to infection
 
 
 
*Cause anaemia
 
 
 
*Wool damage
 
**Irritation and self-inflicted damage
 
**Staining by ked faeces
 
 
 
*Intermediate host for non-pathogenic ''Trypanosoma melophagium'' in sheep
 
 
 
 
 
'''Control'''
 
*Sheep dipping and spraying
 
 
 
*Shearing to decrease numbers
 
 
 
[[Category:Parasites]][[Category:Flies]][[Category:Biting_Flies]]
 

Latest revision as of 12:35, 5 April 2010