Tick Identification Chart
Original image by Litwak for CDC; modified by D.N. Gaines for VDH.
Blacklegged Tick Ixodes scapularis
Vector
Lone Star Tick
Vector
Tu lar em ia
Vector
Vector
Amblyomma americanum
Vector
American Dog Tick Dermacentor variabilis
Tick Stage that Transmits the Most Disease to People
Nymph
Adult
Nymph
Nymph
Minimum Feeding Time for Disease Transmission
24 hours
24 hours
36 hours
36 hours
For more information on tick-borne diseases, visit www.vdh.virginia.gov/TickBrochure.
June 2010
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Tick-borne Diseases
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Tick-borne Disease Chart
Vector
Vector
Adult Only
Nymph or Adult
4-6 hours
Not known
