A contagious mite infectious for domestic animals, wildlife, and man. Cheyletiellosis is primarily a dorsal disease manifested by dry or greasy scales. Lesions are mainly over the rump and shoulder regions. Pruritis is variable. Human infestations are common with dermatitis of variable severity.
Identification is based on microscopic observation of palpal claws on the recovered mite.
Clinical signs include irritation, rubbing, scratching and head shaking. A reddish to black, moist, fetid, wax is usually present in ears. Ulceration and granulation may develop in long standing cases. Adults are similar in appearance to Chorioptes but without posterior eminences. Two different species occur but both effect poultry.