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Ticks are external parasites, living by feeding on the blood of mammals, birds, and sometimes reptiles and amphibians. The timing of the origin of ticks is uncertain, though the oldest known tick fossils are from the Cretaceous period, around 100 million years old. Ticks are widely distributed around the world, especially in warm, humid climates.
Most ticks go through four stages: egg, six-legged larva, eight-legged nymph, and adult. After hatching from the egg, a tick must obtain a blood meal at every stage to survive. Ticks can feed on mammals, birds, reptiles, and amphibians. Unlike most tick species, D. variabilis prefers the same host during all of its life stages. [6]
Ixodes scapularis is commonly known as the deer tick or black-legged tick (although some people reserve the latter term for Ixodes pacificus, which is found on the west coast of the US), and in some parts of the US as the bear tick. [2] It was also named Ixodes dammini until it was shown to be the same species in 1993. [3]
These photos of common bug bites and insect stings can help you figure out what critter is responsible for itchy red welts. ... If the tick was carrying certain tick-borne illnesses, such as Lyme ...
Rhipicephalus is a genus of ticks in the family Ixodidae, the hard ticks, consisting of about 74 or 75 species. [2] [3] Most are native to tropical Africa. [2] Rhipicephalus ticks are commonly called 'the brown tick' as they are mostly brown in colour. [4] Most adult ticks in this genus do not have colour patterns on their scutum (inornate). [4]
Grass tick: Nymph and larva The term grass tick is usually used to refer to the smaller stages of Ixodes holocyclus, but the term delivers little useful information because any tick can be found in the grass. Seed tick: Larva The term seed tick usually is used to refer to the smallest stage of Ixodes holocyclus. Shower tick: Larva
Hosts of Dermacentor ticks include many large and small mammals, including horses, deer, cattle, lagomorphs, peccaries, porcupines, tapirs, desert bighorn sheep, and humans. [2] The American dog tick ( D. variabilis ) is a member of the genus.
The Ixodidae are the family of hard ticks or scale ticks, [1] one of the three families of ticks, consisting of over 700 species. They are known as 'hard ticks' because they have a scutum or hard shield, which the other major family of ticks, the 'soft ticks' ( Argasidae ), lack.