Acari Final

Question 1

Otobius megnini
host?
site?
buzz words?

Answer 1

“spinose ear tick” (soft tick)
livestock, humans, dogs
L&N in ear; A non-parasitic
one-host, eggs in cervices/tree bark; ear drum rupture

Question 2

Argas spp.
host?
site?
buzz words?

Answer 2

“fowl tick” (soft tick)
all birds
L on birds, N&A FEED AT NIGHT
hide in cracks during the day; ANEMIA; need deep enviro Tx

Question 3

Sarcoptes scabiei (DOG)
host?
site?
buzz words?

Answer 3

“mange mite/ scabies” BURROWING
dog, humans (MOST ZOONOTIC)
ears, elbows, ventral body

Question 4

Sarcoptes scabiei (PIG)
host?
site?
buzz words?

Answer 4

“mange mite/ scabies” BURROWING
pigs
head, inner ear
Dx by EARWAX; sow –> piglet; Tx sow b4 farrowing

Question 5

Sarcoptes scabiei (CATTLE)
host?
site?
buzz words?

Answer 5

“mange mite/ scabies” BURROWING
cows
neck, base of tail
REPORTABLE

Question 6

Notoedres cati
host?
site?
buzz words?

Answer 6

“Noteodric cat mite” BURROWING
cat
head
behaves like Sarcoptes; crusty lesions; ZOONOTIC

Question 7

Knemidocoptes spp.
host?
site?
buzz words?

Answer 7

“Scaly leg/ face mite” BURROWING
chickens, turkeys, domestic birds
leg scales, comb, wattles, neck
keratinization of legs/face –> lameness

Question 8

Chorioptes bovis
host?
site?
buzz words?

Answer 8

“foot mange/ itchy heel” NON-BURROWING
cattle, sheep, goats, horses
hind limbs, tail head, udders
direct contact; loss of condition

Question 9

Psoroptes ovis
host?
site?
buzz words?

Answer 9

“sheep scab mite” NON-BURROWING
sheep, cattle
skin; in reservoirs in non-winter; rapid spread in winter
intense scratching, loss wool condition; REPORTABLE

Question 10

Otodectes cynotis
host?
site?
buzz words?

Answer 10

“Ear mite” NON-BURROWING
dog, cat
ears
dark “coffee ground” cerumen in ears

Question 11

Cheyletiella yasguri
host?
site?
buzz words?

Answer 11

"Walking dandruff" NON-BURROWING
"Ella has dandruff"
dogs, humans
skin; mites under skin flakes
body of mite has a "waist"

Question 12

Demodex canis
host?
site?
buzz words?

Answer 12

“Demodectic mange/ follicle mite” HAIR FOLLICLE
dogs
hair follicles, sebaceous glands
normal fauna; path in high #s; patchy alopecia; generalized > localized; mom–> pup; severe in secondary infections

Question 13

Dermanyssus gallinae
host?
site?
buzz words?

Answer 13

“Red chicken/ roost mite” BLOOD SUCKING
domestic wild fowl
skin
“NIGHT MITE” A&N hide during day, feed @ night; 7 days L.C.; hard to control

Question 14

Ornithonyssus spp.
host?
site?
buzz words?

Answer 14

“Northern/ tropical fowl mite” BLOOD SUCKING
CHICKENS
feathers, vent
L.C. entirely on host; similar to Dermanyssus