The Family Argasidae is a group of parasitic arachnids commonly known as soft ticks. These ticks differ from hard ticks in that they do not have a hard dorsal scutum. The Argasidae family comprises several genera, including Ornithodoros, Carios, Argas, and Otobius. These ticks parasitize a range of animals, including mammals, birds, and reptiles, and can transmit diseases such as African swine fever, relapsing fever, and Q fever. Synonyms for the Family Argasidae include the Argas family, the soft tick family, and the bird tick family. The Ornithodoros genus is sometimes called the bird tick genus, while the Carios genus is sometimes known as the bat tick genus.