American dog ticks
American dog ticks are (Dermacentor variables) the most commonly identified species on pets and people. These ticks also cause Rocky Mountain spotted fever in humans. American dog ticks are distributed east of the Rocky Mountains and also some areas on the Pacific Coast. The larvae and nymphs of this species feed on small rodents. Dogs, cats, medium-sized mammals and people are the preferred hosts of the adult.
The black-legged tick (Ixodes scapulars), also known as a “deer tick”, can transmit the organisms responsible for Lyme disease. Deer ticks are found in the northeastern and upper midwestern United States. Deer tick larvae and nymphs feed on small mammals and birds, while adults feed on larger mammals and will bite humans on occasion. The pathogen that causes Lyme disease is found in wild rodent and other mammal populations.
Brown dog ticks
The brown dog tick (Rhipicephalus sanguine us) can transmit the pathogen responsible for Rocky Mountain spotted fever, in the southwestern U.S. and along the U.S-Mexico border. Brown dog ticks can be found throughout the U.S. . Dogs are the primary host for the brown dog tick for all of its life stages. Brown dog ticks also bite humans and other mammals.
Gulf Coast ticks
The Gulf Coast tick can be found in the coastal areas of the United States along the Atlantic coast and the Gulf of Mexico. The Gulf Coast tick can transmit a form of spotted fever. The larvae and nymphs feed on birds and small rodents, while adult ticks feed on deer.
Lone star ticks
The lone star tick (Amblyomma americium) is mostly found in the southeastern and eastern United States. White-tailed deer are a major host of the adult lone star tick. The larvae and nymphs feed on birds and deer. Both nymphal and adult ticks can transmit diseases to humans.
Rocky Mountain wood ticks
Rocky Mountain wood tick (Dermacentor andersoni) can transmit Rocky Mountain spotted fever to humans. Found in the Rocky Mountain states, the adult ticks feed primarily on large mammals. The larvae and nymphs feed on small rodents. Adult ticks are the primarily source of disease transmission to humans.
Western black-legged ticks
The western backlogged tick (Ixodes pacific us) can transmit the pathogens responsible for Lyme disease in people. This tick is found along the Pacific coast of the USA. The larvae and nymphs feed on birds and small rodents. The adult ticks feed on deer and other mammals. Both adult and the nymphs can transmit disease to people.