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The lone star tick (Amblyomma americanum) is instantly recognizable by the central white marking. Laboratory animal at the University of Illinois at Urbana-Champaign
American dog tick Dermacentor variabilis Laboratory animal at the University of Illinois at Urbana-Champaign
American dog tick (Dermacentor variabilis) questing. Laboratory animal at the University of Illinois at Urbana-Champaign
American dog tick (Dermacentor variabilis) questing. Laboratory animal at the University of Illinois at Urbana-Champaign
Dermacentor variabilis, the American dog tick. Archbold Biological Station, Florida, USA
American dog tick Dermacentor variabilis

Laboratory animal at the University of Illinois at Urbana-Champaign
American dog tick Dermacentor variabilis Laboratory animal at the University of Illinois at Urbana-Champaign
American dog tick Dermacentor variabilis

Laboratory animal at the University of Illinois at Urbana-Champaign
See photo in original gallery.
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all images and text © Alex Wild 2001-2013