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Description: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”.
High Resolution: Click here for hi-resolution image (6.08 MB)
Content Providers(s):CDC
Creation Date:1976
Photo Credit:
Links:CDC – Div. of Vector-Borne Infectious Diseases: Lyme Disease Home Page
CDC – Nat. Center for Infectious Diseases; Viral and Rickettsial Zoonoses Branch: Rocky Mountain Spotted Fever
CDC – E. I. D., "Tick-borne Relapsing Fever Caused by Borrelia hermsii, Montana", Vol. 9, No. 9, September 2003
CDC Organization
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.