The Parasitiformes are a superorder of Acari and include ticks and some mites. Ticks are blood-feeding external parasites of animals. There are about 850 species worldwide in two families, Ixodidae (hard ticks), and Argasidae (soft ticks). Both hard and soft ticks are important vectors of disease in humans and other animals.

Related categories 7

Amblyomma americanum: Lone Star Tick
Photographs of this species with information on its habitat, life cycle and description.
Amblyomma cajennense
Photographs of several engorged female ticks and information on this known vector of Rickettsia rickettsii, the cause of spotted fever.
Argas miniatus
Photographs of these fowl ticks which infest birds and bats.
Blacklegged Tick: Ixodes scapularis
Photographs and information on the natural history of this deer tick that can carry Lyme disease.
Boophilus microplus
Photographs of adults and larvae of the southern cattle tick.
Dermacentor nitens
Photographs of the tropical horse tick, the only species known to be a natural vector of equine babesiae (Babesia caballi) in the New World.
Dermacentor variabilis: American Dog Tick
Photographs of this parasite and information on its habitat, life cycle and description.
Information on Ticks
Articles on the identification and removal of ticks.
Iowa Insect Notes: American Dog Tick
About Dermacentor variabilis and its control, with photographs illustrating the life stages of this and other ticks found in the region, including deer tick (Ixodes scapularis) and lone star tick (Amblyomma americanum).
Iowa State Entomology - Ticks
Photographs and QuickTime movies of several tick species of North America.
Ixodes scapularis: Black-legged or Deer Tick
Photograph and information on this parasite, its habitat, life cycle, description and control.
Ixodes scapularis: Blacklegged or Deer Tick
Provides photographs and a description of this tick, with information on its distribution, life cycle, medical significance and management.
Ixodes scapularis: Deer Tick
Research project by Brianna Clarin on this species, including its classification, habitat, reproduction, adaptations, nutrition and interactions with other species.
Ixodes scapularis: Deer Tick
Student project including classification, habitat, adaptation, nutrition, reproduction and interactions with other species.
Lyme Disease and Tick Management
University of Nebraska Cooperative Extension factsheet and audio on ticks and Lyme disease, including images of several tick species and life stages. [PDF]
MedlinePlus: Tick Bites
Information about ticks and tick-borne diseases.
Ornithodorus talaje
This tick infests reptiles, birds and mammals. Photographs of an adult and an unidentified larva of the same genus.
Rhipicephalus sanguineus
Photographs of male and female brown dog ticks, with information on the transmission of canine piroplasmosis (Babesia canis) and tropical canine pancytopenia (Ehrlichia canis).
Rhipicephalus sanguineus: Brown Dog Tick
Provides photographs and a description of this tick, with information on its distribution, life cycle, medical and veterinary significance and management.
Rhipicephalus sanguineus: Brown Dog Tick
Photographs of this species with information on its habitat, life cycle and description.
Tick Research Laboratory at Texas A&M University
Detailed information about ticks and tick research in Texas.
Ticks
Photographs and information on the brown dog tick and the American dog tick, their importance and control.
University of Rhode Island Tick Research Laboratory
Research and information on ticks and tick-borne diseases. Includes sketches, photos, size comparison, and morphological descriptions of ticks found in Rhode Island.
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