Wohlfahrtia spp.

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  • Also known as flesh fly
  • Obligatory parasite
  • Occurs in North America
  • Parasite of mink and sometimes humans
Wohlfahritia (Image sourced from Alvesgaspar, Wikimedia Commons)

Recognition

  • Large 8-14mm long
  • Pale grey
  • Black stripes on thorax
  • Black spots on abdomen


Life cycle

  • Larvae deposited directly onto host
  • No egg stage
  • Larvae moult twice on host then fall to ground to pupate


Pathogenesis

  • Larvae penetrate intact skin
    • Cause boil like swellings