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Ticks 20 *
This drawing shows the morphologic differences between soft ticks, Argasidae, and hard ticks, Ixodidae. The soft ticks are oval, i.e., pear-shaped, and are rounded anteriorly, with mouth parts that are more easily seen from the ventral view. Some soft ticks are known to be a vector for the spirochetes responsible for causing “Relapsing Fever."
Arthropods, Arachnida, Acari, Ticks, Lyme Disease, Ehrlichiosis, Q Fever, Rocky Mountain Spotted Fever
Picture & text from CDC/PHIL. For more information on source & for information on color coding used above for different types of ticks, see Tick Pictures from CDC