Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Fall Fund Drive


Family Ixodidae - Hard Ticks

Tick on squirrel - Ixodes marxi Adult Male Pacific Coast Tick, Dermacentor occidentalis? - Dermacentor Tick - Amblyomma americanum - female Lone Star Tick - Amblyomma americanum - female American Dog Tick? - Dermacentor American Dog Tick - Dermacentor variabilis - female Tick - Amblyomma americanum Amblyomma maculatum or A. triste? That is the question. - Amblyomma maculatum - male
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Subclass Acari (Mites and Ticks)
Superorder Parasitiformes
Order Ixodida (Ticks)
Family Ixodidae (Hard Ticks)
Explanation of Names
Ixodidae Dugès 1834
close to 700 spp. in 14 genera worldwide(1)
Identification is easier if there is both a dorsal and ventral photo (the latter is more important)
Key to eastern spp. in(2)
Ticks not known to transmit Lyme disease include Lone Star Tick (Amblyomma americanum), the American Dog Tick (Dermacentor variabilis), the Rocky Mountain Wood Tick (D. andersoni), and the Brown Dog Tick (Rhipicephalus sanguineus). (CDC 2013)
Works Cited
1.Superorder Parasitiformes Reuter, 1909. In: Zhang Z.-Q. (ed.) Animal biodiversity: An outline of higher-level classification...
Beaulieu F., Dowling A.P.G., Klompen H., de Moraes G.J., Walter D.E. 2011. Zootaxa 3148: 123–128.
2.Pictorial key to the adults of hard ticks, family Ixodidae (Ixodida: Ixodoidea), east of the Mississippi River
Keirans J.E., Litwak T.R. 1989. J. Med. Entomol. 26: 435-448.