Introduction to Diagnostic Medical Parasitology
Sarcoptidae
Virtual Microscope
![](/.imaging/mte/default-theme/parasiteImage/dam/parasites/Ectoparasites/Mites/Scabies-mites/Sarcoptidae/Kr-tze-2.jpg/jcr:content/Kr%C3%A4tze%202.jpg)
Characteristics / Biology of Acarina
- 8 legs (exception: some larval stages of mites and ticks have only 6 legs)
- Mites have capitulum («head» with mouth parts)
- Spheric body
- Pronounced capitulum with mouth parts
- Hard dorsal shield in case of hard ticks
- Incomplete metamorphosis (hemimetabole development) (larvae look the same as adults)
- Itch mite (scabies): feeding on cell and lymph fluid, female creates burrows in the skin
- Hosts: Wild animals and pets, human
![](/.imaging/mte/default-theme/parasiteImage/dam/parasites/Ectoparasites/Mites/Scrub-typhus-mites/Trombiculidae/Kr-tze.jpg/jcr:content/Kr%C3%A4tze.jpg)
![](/.imaging/mte/default-theme/parasiteImage/dam/parasites/Ectoparasites/Mites/Scabies-mites/Sarcoptidae/Kr-tze-krank.jpg/jcr:content/Kr%C3%A4tze%20krank.jpg)
•Medical significance:
- skin irritations, skin rash