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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.
Ticks are widely distributed around the world, especially in warm, humid climates. Ticks belong to two major families, the Ixodidae or hard ticks, and the Argasidae, or soft ticks. Nuttalliella, a genus of tick from southern Africa, is the only member of the family Nuttalliellidae, and represents the most primitive living lineage of ticks ...
Ixodes is a genus of hard-bodied ticks (family Ixodidae). It includes important disease vectors of animals and humans (tick-borne disease), and some species (notably Ixodes holocyclus) inject toxins that can cause paralysis. Some ticks in this genus may transmit the pathogenic bacterium Borrelia burgdorferi [3] responsible for causing Lyme disease.
Structure and internal anatomy of a hard tick, Ixodidae, showing the general positions and form of the major organs, legs, and feeding apparatus: Soft ticks, the Argasidae, have similar structures, but their mouthparts are smaller and project ventrally. Ticks are invertebrate animals in the phylum Arthropoda, and are
It is classified as a hard tick in the family Ixodidae. It is a small teardrop-shaped arachnid with a hardened plate called the scutum covering its head. Males are entirely covered in scutum on their backs with additional plates called festoons along their sides. The body can be brown or pale in nymphs and darkens as the tick matures.
Haller's organ is a complex sensory organ possessed by hard and soft ticks (Ixodidae and Argasidae). [1] Not found outside of Acari, it is proposed to function like the chemosensation of insect antennae, but is structurally different. Ticks, being obligate parasites, must find a host in order to survive.
The hypostome being present in almost all tick families suggests that hematophagy is the ancestral condition, as is the fact that life stages that do not feed on blood lack the organ. [1] Some ticks of the Ixodidae family (hard ticks) secrete a cement to strengthen the attachment. [2]
The hedgehog tick is dark brown in color, but appears light grey or white when engorged. It can be identified by the humped tarsae of its first pair of legs. The adult female has a characteristic heart- or hexagon-shaped scutum; the male's scutum covers the entire body segment (idiosoma), as is typical for hard ticks. A lateral groove runs ...