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3 Cards in this Set

  • Front
  • Back

Characteristics of arachnids

- sac-like, unsegmented body


- highly specialise mouth parts capitulum w/ hypostome


- 4 stage life cycle: egg, larvae,nymph and adult

Ixodes (ticks)

Largest of ascarines


Toothed hypostome


Haller's organ


absence of claws on palps



Cause dermatosis, paralysis, Lyme disease

demodex (mites)

Scabies disease, mange disease, scrub typhus