Mites Flashcards
Sarcoptes scabiei v suis
Tunnelling sarcoptiform mite
erythematous, alopecia, pruritis
Head, then neck shoulders and back
zoonotic
Sarcoptes scabiei v. canis
tunneling sarcoptiform mite
erythematous, papular, alopecia, pruritis
ears, lateral elbow, ventral abdomen
zoonotic
Notoedres cati
tunnelling sarcoptiform mites - cats/rabbits
crust, thickened skin, alopecia
ears - then face, neck, paws and hindquarters
FELINE SCABIES
Trixacurus caviae
Tunneling sarcoptiform mite - guinea pig
Dry, scaly, alopecia, dermatitis, pruritis
Back, neck, shoulders
Anorexia/Death with infestations
Cnemidocoptes mutans
Tunneling sarcoptiform mite - poultry/wild birds
Hyperkeratosis - thickened/deformed legs
Legs
Cnemidocoptes pilae/ Cnemidocoptes jamaicenis
tunneling sarcoptiform mites - parakeets/canaries
leg lesions, crusty mass on beak
feet, cere, vent, back
Cnemidocoptes gallinae
tunneling sarcoptiform mites - poultry/pigeons
inflammation, pruritis, feathers break easily
Back, top of wing, breast, thighs, vent
Psoroptes caniculi
Surface-dwelling sarcoptiform mites - rabbits/livestock/horses/cervids
dried crust in pinna, brown discharge, otitis media
Ears
Psoroptes ovis
surface-dwelling sarcoptiform mite
pruritic, self mutilation, debilitation
wooled areas
ERADICATED - REPORTABLE
Psoroptes ovis/bovis
surface dwelling sarcoptiform mites - cattle
pruritic, papules
withers, back, rump
REPORTABLE AND QUARANTINABLE
Chorioptes spp
surface dwelling sarcoptiform mites - ruminants, camelids, horses
thickened, crusty, not pruritic
skin of lower hind legs, tailhead, escutcheon
REPORTABLE IN SOME STATES
Otodectes cynotis
Surface-dwelling sarcoptiform mites - dogs, cats, ferrets
Pruritic, dark cerumen, head shaking
external ear, ear canal, base of tail
Demodex spp (Demodex canis, Demodex injai, Demodex cati, Demodex gatoi)
Non-sarcoptiform mites - host specific
live in hair follicles and sebaceous glands of humans/domestic animals
nonpathogenic, but can cause disease -patchy alopecia
direct contact - spontaneous recovery/recurrence are
cigar-shaped body
Demodex bovis, Demodex caprae (goats), Demodex ovis, Demodex phylloides (pigs), Demodex caballi (horse), Demodex equi
cattle/goat- pustules - shoulders, trunk and lateral neck
sheep - localized, scaly lesions
pigs - pustules around eyes/snout, spread to ventral body
horse - pruritis, alopecia, neck/withers to head, forelimbs and back
Cheyletiella spp (blakei -cats, parasitivorax - rabbits, cats, dogs, yasguri - dogs)
Non-sarcoptiform mites
walking dandruff - motile, large hooklike acessory palpi
dry, scaly dermatitis, alopecia
may infest humans - mild dermatitis
