Otoacariasis
Guides
Otobius
spinose ear tick
Otobius is a genus of soft-bodied ticks in the family Argasidae. Adults possess a vestigial hypostome (feeding mouthpart) despite nymphs having a fully developed hypostome, and lack both eyes and a hood. The genus contains two species: O. lagophilus, associated with lagomorph hosts, and O. megnini, the spinose ear tick, which infests the ear canals of domestic and wild mammals. O. megnini is of veterinary significance due to its propensity to cause otitis, ear canal obstruction, and associated neurological symptoms in heavily infested hosts.