Myiasis Producing Flies

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Introduction

Myiasis is the parasitism of living animals by dipteran larvae. Myiasis can be obligatory or facultative (optional) and is described as cutaneous, nasal or somatic.

Oestridae

Dermatobia hominis

Calliphoridae

Chrysomya bezziana

Maggot Debridement Therapy








Wohlfahrtia spp.

  • Obligatory parasite
  • Occurs in North America
  • Parasite of mink and sometimes humans


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

Myiasis Producing Flies Flashcards

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