Larvae and nymphs of this Argasid (soft tick) species are gray to light brown in color and are common parasites of livestock. Field and laboratory studies in a Neotropical population of the spinose ear tick , Otobius megnini.Medical and Veterinary Entomology 23:1-5. The spinose ear tick has a worldwide distribution, the young feeding inside the ears of cattle and wild animals. We have seen several of these ticks in the past few years, all from the relatively arid parts of Whitman county. Migrating birds carry ticks with them on their journeys; a study of migratory birds passing through Egypt found more than half the bird species examined were carrying ticks.
An annotated bibliography of the spinose ear tick, Otobius megnini, (Duges, 1883) (Acari: Ixodida: Argasidae) 1883-2000.
Entomology, spinose ear ticks do not spend their entire life on the animal. THE SPINOSE EAR TICK takes its common name from the characteristic spines on the body of the young tick and from its habit of locating in an animal's ears. of the animals which they may infest, complete eradication of spinose ear ticks is a very difficult matter. Occurrence of Coxiella burnetii in the spinose ear tick, Otobius megnini. Field and laboratory studies in a Neotropical population of the spinose ear tick , Otobius megnini.Medical and Veterinary Entomology 23:1-5. This feeding duration provides numerous opportunities for dispersal of these ticks to new areas travelled by the host animal.
This parasite is especially prevalent in the semiarid sections of the southwestern United States, the infested area extending, however, as far north as Nevada and even into Oregon. Nymphs have well developed chelicerae with pronounced spines present on the anterior regions of the cuticle. The remains of five specimens of the spinose ear tick, Otobius megnini, were recovered – four from subunit 6A and one from subunit 7A (Table 1; Fig. Distribution. An annotated bibliography of the spinose ear tick , Otobius megnini, (Duges, 1883) (Acari: Ixodida: Argasidae) 1883-2000. The pet disease is spread by infected ticks of the following species: Brown dog tick, Lone star tick, American dog tick, Spinose ear tick, Western black-legged tick, Deer tick and Castor bean tick. Spatial and temporal distributions of the spinose ear tick, Otobius megnini, within animal shelters at … Spinose Ear Tick Species. They enter the ears of the animal as small, active, six-legged seed ticks or larvae, not easily visible to the naked eye. Only the larval and nymphal stages will infect animals. In general, ticks are to be found wherever their host species occur. Adults are non-parasitic, and typically measure 4 to 8 mm long. Otobius megnini (Dugés) Description. It can be a real problem in livestock, causing poor condition with heavily infested cattle. It can be a real problem in livestock, causing poor condition with heavily infested cattle. It will infect the ears of many different animals including the horse. Biology: The spinose ear tick utilizes a single host in completing its lifecycle. This pet condition is much more commonly diagnosed in dogs.
2). The larvae attach themselves onto a horse, climb to the ears, inside which they feed. Adults are free-living and are found in hidden areas in the … While studies have shown that cats can contract this infection, very little is known about feline ehrlichiosis. Medical definition of spinose ear tick: an ear tick of the genus Otobius (O. megnini) of the southwestern United States and Mexico that is a serious pest of cattle, horses, sheep, and goats. We have seen several of these ticks in the past few years, all from the relatively arid parts of Whitman county. Spinose ear ticks feed as larva, first and second instar nymphs over a period of 5 weeks to several months without leaving their host. This tick lives in the ears of dairy cattle and the stage most frequently seen is the large engorging nymph.