Musca spp.

Virtual Microscope

© B. Dumitru/Fotolia


  • Insect: Three part body (head/thorax /abdomen) and 6 legs
  • Worldwide distribution
  • Dorso-ventrally flattened, size 6 mm
  • Wings
  • No specific host
  • Complete metamorphosis (holometabole development)

•Medical significance: 

  • Carrier of over 100 different pathogens (65 of which are transmissible to humans). Contaminated body parts of the fly, e.g., Shigellosis (bacillary dysentery), regurgitated food, and excrement.

  • Viruses: e.g., Polio, Coxsackie, Hepatitis

  • Bacteria: e.g., Anthrax, Campylobacter, Cholera, Shigella, Salmonella, Escherichia coli, Staphylococcus aureus

  • Protozoa: e.g., Entamoeba, Cryptosporidium, Giardia

  • Helminths (parasitic worms): e.g., Taenia, Ancylostoma, Dipylidium, Diphyllobothrium, Enterobius, Trichuris, Ascaris, and occasionally Thelazia (eye worm).

  • M. sorbens (bazaar fly in Africa and Asia) is also a carrier of Trachoma (Chlamydia trachomatis

Posterior spiracles of third-instar larvae of myiasis