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RUSVM Parasitology > Phthiraptera, Siphonaptera, Hemiptera > Flashcards

Phthiraptera, Siphonaptera, Hemiptera Flashcards

1
Q

What is the life cycle of Phthiraptera (Lice)

A

Egg
3nymph stage
Adult

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2
Q

What are the suborders of Phthiraptera?

A

Ischnocera (Mallophaga)

Anoplura

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3
Q

What are the species of Ischnocera?

A

Trichodectes canis
Felicia subrostrauts
Damalinia bovis
Damalinia ovis

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4
Q

Common name of trichodectes canis?

A

Dog biting louse

Dog chewing louse

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5
Q

What are the features of Ischocera?

A

Biting, chewing lice
Mandible > thorax
Feed on skin, fur, feathers

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6
Q

Host of trichodectes canis?

A

Dog

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7
Q

Life cycle of trichodectes canis

A

Female lay eggs > 3 nymph stages -> adults

Require host to finish life cycle

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8
Q

Site of infestation of trichodectes canis?

A

Hair and skin

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9
Q

Trichodectes canis can vector _______________

A

D. Caninum (dog tapeworm)

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10
Q

Dog
Pruritus
Hair loss due to scratching

A

Trichodectes canis

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11
Q

Treatment of trichodectes canis?

A

avoid contact with brushes, combs, and blankets

MCL

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12
Q

Common name of Felicola subrostratus

A

Cat biting louse

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13
Q

Host of felicola subrostraus

A

Cat

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14
Q

ID

Cat 
Beige/yellow 
Transverse brown bands
Triangular anterior portion of head 
Small legs
A

Felicola subrostraus

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15
Q

Site of infection of felicola subrostraus?

A

Skin, face, pinnate, back

Seen in elderly or chronically ill animals
Long haired breeds

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16
Q

Common name of Damalinia bovis?

A

Cattle biting louse

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17
Q

Host of Damalinia bovis

A

Cattle

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18
Q

Site of infestation of Damalinia bovis?

A

Head, poll, neck, shoulders, rump, tail

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19
Q

What is the life cycle of Damalinia Bovis

A

Winter favors proliferation

  • thick coat
  • cattle housed
  • parthenogenesis

Summer - low numbers

  • thin prelate
  • skin surface temp high
  • sunlight is leathal
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20
Q

What causes chronic dermatitis in cattle, in large numbers intensive causes irritation a pruritius, sign of malnutrition or chronic disease

A

Damalinia bovis

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21
Q

Treatment of Damalinia bovis

A

Ectoparasiticides

MCL

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22
Q

Common name of Damalinia ovis

A

Biting louse of sheep

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23
Q

Host of Damalinia ovis?

A

Sheep and goat

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24
Q

Site of infestation of Damalinia ovis?

A

Wool

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25
What is the most pathogenic lice of sheep causing sheep to lose body condition, damage fleece, and attracts blowflies.
Damalinia ovis
26
What are the characteristics of Anoplura lice ?
``` Bloodsucking lice (more pathogenic) Pointed noses Head< thorax Slow moving Clasping to hair shaft Lice of mammals ```
27
What species belong to the suborder anoplura ?
Linognathus spp Solenopotes spp Haematopinus spp
28
Common name of Linognathus setosus?
Dog sucking louse
29
Host of Linognathus setosus
Dog
30
Pathogenesis and clinical signs of Linognathus setosus?
Heavy infestation - anemia | Loss of body condition and damage to skin
31
Common name of Linognathus vituli?
Long nosed cattle louse
32
Host of Linognathus vituli?
Cattle
33
Site of infestation of Linognathus vituli ?
Dewlap, head, neck | Gregarious -dense isolated clusters
34
Pathogenesis of Linognathus vituli?
Heavy infestation- pruritus, anemia, and weakness | Sign of malnutrition or chronic disease
35
Linognathus pedalis and Linognathus ovillus host?
Sheep and goat
36
What anopluran lice of sheep is found on the lower region of hindlimbs, scrotum, and belly?
Linognathus pedalis
37
What anopluran lice of sheep os found on the face, ears, cheeks, neck, and body of heavy wool breeds?
Linognathus ovillus
38
What is the pathogenesis of Linognathus pedalis / Linognathus ovillus?
Anemia
39
What is the common name of Solenopotes capillatus?
Little blue cattle louse
40
Host of Solenopotes capillatus?
Cattle
41
ID Cattle Bluish Louse 1.2-1.5mm Neck, head, shoulders, dewlap, back and tail
Solenopotes capillatus
42
Common name of Haematopinus eurysternus?
Short nosed cattle louse
43
Host of Haematopinus eurysternus?
Cattle
44
ID Cattle Dense isolated clusters around head, ears, eyes, and nostrils Anopluran Large louse
Haematopinus eurysternus | Short nosed cattle louse
45
Pathogenesis of Haematopinus eurysternus ?
Anemia | Weight loss
46
Common name of Haematopinus suis?
Sucking louse of pigs
47
Host of HAematopinus suis
Pig
48
Site of infection of Haematopinus suis
Skin folds of neck and jowl Flanks Inside of legs
49
Pathogenesis of Haematopinus suis?
Heavy infestation - restlessness leading to drop of production Anemia (rare) Skin damage from scratching and reduces value of hides
50
What is the most common treatment form anopluran lice?
MCL Ectoparasiticides Avoiding contact with brushes, combs, blankets
51
What are the species of Siphonaptera?
Ctenocephalides felis Ctenochepalides canis Echidophagia spp FLEAS
52
Host of Ctenocepalides felis?
Dog and cat
53
Site of infestation of Ctenocephalides felis?
Skin, back, ventral abdomen, and inner thighs
54
Pathogenesis of Ctenocephalidies felis?
Flea bit allergy or flea allergy dermatitis (FAD) | Vector disease
55
Treatment and prevention of Ctenocephalides felis?
Insecticides- usually don't treat all life stages breaking life cycle Environment control - vacuum - mow lawn and rake clippings/leaves - foggers, dusting powders, and sprays
56
Common name of ctenocephalides canis?
Dog flea
57
Host of ctenocephalidies canis?
Dog, cat, rat, rabbit, fox, and human
58
Common name of Echidnophaga spp?
Sticktight flea
59
Host of Echidnophaga spp?
Domestic and wild fowl
60
Site of infection of Echidnophaga spp?
Head, comb, wattles, and eyes
61
Pathogenesis and clinical signs of Echidnophaga spp?
Irritation Blood loss Anemia
62
Common name of Cimex spp?
Bedbug
63
Host of cimex spp?
Nesting bird, human, bat
64
Life cycle of Cimex spp?
Egg -> nymph (molt 5 times) -> adult Hide during day Feed on host at night Can survive >5months without blood meal
65
Pathogenesis of Cimex spp?
Bloodsuckers Allergic reactions to bites Massive infestation can lead to blood loss

RUSVM Parasitology (12 decks)

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