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RUSVM Parasit SPR 2020 > INSECTS: Argasids and Mites > Flashcards

INSECTS: Argasids and Mites Flashcards

1
Q

What common name is associated with argasids?

A

Soft ticks

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2
Q

What characteristics are associated with argasids?

A
  • No scutum
  • Leathery tegument, spinose, and bumpy
  • Ventral mouthparts
  • Over 2 nymphal stages
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3
Q

What is the common name for Otobius spp.?

A

Spinose ear tick

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4
Q

What is present on Otobius spp. adults?

A

Short, sharp spines

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5
Q

While larvae and nymphs are taxied, adults will -?

A

Not be on the animal, and do not feed

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6
Q

Where will Otobius infestations occur, and what can come of it?

A

Ear canals, and anemia

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7
Q

What is the common name for Argas spp.?

A

Fowl tick

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8
Q

What morphology is associated with Argas adults?

A
  • Leathery, textured appearance
  • Lateral line or crease
  • Larger genital pore in females
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9
Q

What characteristics are associated with Argasids?

A
  • Engorge rapidly
  • Survive arid conditions
  • Frequent feedings
  • Disease transmission
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10
Q

How can mites be identified?

A
  • Scales, spines, and setae on the body
  • Legs have claws or suckers
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11
Q

Sarcoptidae spp. are ___________ mites, while Otodectes are restricted to a specific area of the body.

A

Burrowing

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12
Q

What mite species are non-burrowing?

A
  • Psoroptes*
  • Cheyletiella*
  • Chorioptes*
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13
Q

What common name is associated with Sarcoptes scabiei?

A

Sarcoptic mange mite, Itch mite, Scabies mite

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14
Q

What morphology is associated with S. scabiei?

A
  • Round
  • Short legs
  • 3rd and 4th pairs do not extend beyond body margin
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15
Q
A
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16
Q

Infesting the skin, S. scabiei will lead to -?

A

Erythema, scale, and crust (dried serum, and blood) formation leading to pruritis. All beginning with hair loss on the lateral elbow and ear pinna.

17
Q

In swine, S. scabiei is spread from _______ to ______, with signs capable of appearing within 3 _______ from birth. The first lesions are wheals, leading to erythema that progresses to scabs, crust formation and __________, or thickening of the skin.

A

Sow

Piglets

Weeks

Hyperkeratosis

18
Q

Where can S. scabiei be found on swine?

A

In earwax

19
Q

Treating the sow, prior to farrowing, can be done for S. scabiei as a reliable indicator when older is -?

A

Pruritis over mite recovery during skin scrapings

20
Q

In what species will S. scabiei be prevalent in the epidermal layers of the skin, as scaly or thickened skin? As well as being reportable?

A

Cattle

21
Q

WWhat is the most pathogenic cattle mange?

A

S. scabiei

22
Q

A loss in production from S. scabiei can occur in -?

A

Cattle

23
Q

What can be administered to lactating dairy cattle for S. scabiei?

A

Eprinomectin

24
Q

What common name is associated with Notoedres cati?

A

Notoedric cat mite

25
Q

While similar to S. scabiei, what difference is associated with Notoedris cati?

A

Its about half its size

26
Q

What is the common name for Knemidoctoptes spp.?

A

Scaly leg mite, Scaly face mite

27
Q

What species are affected by Knemidoctoptes spp.?

A

Fowl

28
Q

Knemidectoptes have their life cycles are all -?

A

Entirely on the host

29
Q

What pathogenesis is associated with Knemidectoptes mites?

A

Inflammation, keratinization, lameness, and malformation of the feet

30
Q

Non-burrowing mite Chorioptes bovis is associated with large and small ruminants and equids, and can be identified by their -?

A

Rounded mouthparts, sucker shape at the end of their stalks

31
Q

What pathogenesis is associated with Chorioptes bovis?

A

Damaging hides, in late winters they produce mild conditions

32
Q

What non-burrowing mite, called the Sheep scab mite, is oval with pointed mouthparts?

A

Psoroptes ovis

33
Q

What does Psoroptes ovis cause?

A

Scab mange, due to piercing and chewing at epidermal layers, with zones of inflammation with serous exudate that lead to intense pruritis, restlessness, and ragged wool

34
Q

Psoroptes ovis: Rapidly spreading over _________, they will find reservoir areas in non-winter months in the axilla, groin, and pinna.

A

Winter

35
Q

Is Psoroptes ovis reportable?

A

Yes

36
Q

Non-burrowing mite Otodectes cynotis, has many hosts, and can be identified by its -?

A
  • Long legs
  • Suckers
  • Dark cerumen
37
Q

Found in the ______, these mites will lead to frequent shaking of the head, as well as dry parchment like waxy material being produced.

A

Ears

38
Q

Cheyletiella yasguri is identified with its ______, palpal claws, and as _________ ______.

A

Waist

Walking dandruff

39
Q

What tests can be done for Cheyletiella yasguri?

A

Adhesive tape test

RUSVM Parasit SPR 2020 (25 decks)

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