Mites Flashcards
- Sarcoptiform mite
- Tunneling mite
- Dogs
- Redness(erythema)–> rash with raised bumps(papular)–> crusty, thickened, alopecia(hair loss), pruritis(itchy)
- Ears, lateral elbows, ventral abdomen
- Zoonotic
Sarcoptes scabiei v. canis
- Sarcoptiform mite
- Tunneling mite
- Pigs
- Inflammation and redness, alopecia, intense pruritis
- Starts on head, spreads to neck shoulders and back
- Zoonotic
Sarcoptes scabiei v. suis
- Sarcoptiform mite
- Tunneling mite
- Cats, rabbits
- Yellow crusts, thickened skin, alopecia
- Starts on ears, spreads to face, neck, paws and hindquarters
- Most common cause of feline scabies
Notoedres cati
- Sarcoptiform mite
- Tunneling mite
- Guinea pigs
- Dry, scaly skin with alopecia, dermatitis, extreme pruritis–> can lead to anorexia and death
- Back, neck, shoulders
Trixacarus caviae
- Sarcoptiform mite
- Tunneling mite
- Poultry and wild birds
- Hyperkeratosis with legs becoming thickened, deformed
- Legs
Cnemidocoptes mutans
-Scaly leg
- Sarcoptiform mite
- Tunneling mite
- Parakeets and canaries
- Hyperkeratosis with legs becoming thickened, deformed, crusty mass on beak
- Legs, cere, vent, back
- Remove leg scale and examine underside to detect
Cnemidocoptes pilae
and
C. jamaicensis
-Scaly face
- Sarcoptiform mite
- Tunneling mite
- Poultry and pigeones
- Inflammation, pruritis, feathers break easily, may cause feather picking
- Back,wings, breast, thighs, vent
- Remove leg scale and examine underside to detect
Cnemidocoptes gallinae
- Sarcoptiform mite
- Surface mite
- Rabbits mostly, also horses, goats, sheep, alpacas, llamas
- Dried crust in pinna, brown discharge, possible inflammation
- Ear
Psoroptes cuniculi
- Sarcoptiform mite
- Surface mite
- Sheep and cattle
- Pruritis, crusty thickened skin, raised rash, much worse in sheep: bleeding scabbing, wool loss, possible death
- Eradicated in the US, reportable
Psoroptes ovis
- Sarcoptiform mite
- Surface mite
- Ruminants, camelids, horses
- Thickened crusty skin, slightly pruritic
- Lower hind legs, tail head, pubic region
- Reportable in some states
Chorioptes spp
- Sarcoptiform mite
- Surface mite
- Cats, dogs, ferrets
- Highly pruritic, lots of dark cerumen produced, head shaking–> can cause hematoma of pinna; can cause perforation of ear drum
- Ear, base of tail
Otodectes cynotis
-Non-sarcoptiform mite
-Dog
-Localized alopecia, redness, pruritis, generally self resolves, usually occurring in juveniles
or
-Generalized alopecia, redness, pruritis, odor, difficult to treat, result of immunodeficiency
Demodex canis or other various Demodex spp.
- Non-sarcoptiform mite
- Cat
- Alopecia, redness, scaly or crusty dermatitis
- Face neck and ears
Demodex cati, Demodex gatoi
- Non-sarcoptiform mite
- Cattle and goats(respectively)
- Pustules on trunk, shoulders and neck
Demodex bovis, Demodex caprae
- Non-sarcoptiform mite
- Pig
- Pustules around eyes, mouth and ventral trunk
Demodex phylloides
- Non-sarcoptiform mite
- Horses
- Alopecia, pruritis, scaling, pustules
- Starts on the neck or withers, spreading to head, forelimbs and back
Demodex equi and Demodex caballi
- Non-sarcoptiform mite
- Can resemble sarcoptiform, but no stalks, and large hooks on palpi(mouth parts) and very large size
- Dogs, cats, rabbits, zoonotic
- Scaly dermatitis, mild alopecia, possibly skin thickening
Cheyletiella spp
-Walking dandruff
- Non-sarcoptiform mite
- Poultry, wild birds, humans
- Large size, visible with naked eye
- Irritation, weight loss, decreased egg production, anemia, may lead to death
- Usually found off bird
Dermanyssus gallinae
-Red mite of poultry
- Non-sarcoptiform mite
- Poultry, wild birds, humans
- Large size, visible with naked eye
- Irritation, weight loss, decreased egg production, anemia, may lead to death
- Found on bird or in nests
Ornithonyssus sylviarum
-Northern fowl mite
-Non-sarcoptiform mite
-Dogs
-has been associated with sneezing, sinusitis,
labored breathing, and disorders of the central nervous system(result of the sinusitis)
-Nasal passages and sinuses
-Found with nasal swab, nasal lavage or most commonly with rhinoscopy
Pneumonyssoides caninum
