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Also known as the Winter tick

 

Hosts

Cattle, horse, sheep, deer, dog, fox, hedgehog, humans

 

Distribution

France, Poland, Regions of the Mediterranean

Haemaphysalis inermis is generally found in forest areas including (France); Fontainbleau, Chateauroux, Royan, Bordeaux an vienne.

 

Pathogenesis

Most hosts: Tick Paralysis

H. inermis has also been associated with tick borne encephalitis (TBE).

 

Description

Adult female dorsal features

  • Palps long and narrow
  • Cornua absent
  • Trochanter I has a small posterior facing spur
  • Overall length of unfed female is 2.5-3.5mm
  • Engorged females can measure up to 8.0mm in length

H. inermis female dorsal 0 

H. inermis female dorsal g 0 

Adult female dorsal view and adult female close up of gnathosoma. (Click on pictures for a close up)

Adult female ventral features

  •  Coxae I-IV: small external spur

H. inermis female ventral 0 

H. inermis female ventral g 0 

Adult female ventral view and adult female close up of coxae/ventral gnathosoma. (Click on pictures for a close up)

Adult male dorsal features

  • Palps lack lateral projections
  • Lateral and cervical grooves absent
  • Trochanter I has posterior facing spur
  • Overall length of male is 2.4-3.0mm

H. inermis male dorsal 0 

H. inermis male dorsal g 0 

Adult male dorsal view and adult male close up of gnathosoma. (Click on pictures for a close up)

Adult male ventral features

  • Coxae I-IV: small external spur
  • Large, rounded adanal shields present

H. inermis male ventral 0 

H. inermis male ventral g 0 

Adult male ventral view and adult male close up of coxae/ventral gnathosoma. (Click on pictures for a close up)

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