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Parasitology > E1 > Flashcards

E1 Flashcards

1
Q

Bed Bugs

A

Cimex lectularius

  • Found on headboard
  • Hide during daytime
  • Can survive without blood meal for 7 mo
  • WIWPHTH: cause allergic reaction
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2
Q

Kissing Bugs

A

Triatoma

- Vector for Trypansoma cruzi (Chagas disease)

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3
Q

Centipede/Millipede

A

Myriapoda

- produces venoms/toxins

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4
Q

Aquatic arthropods

A

Crustacea

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5
Q

Black fly/Buffalo gnat

A

Simulium
- blade-like lacerating mouth part: vicious blood feeders
- prominent hump
- Habitat: swiftly flowing streams
- Wings: VEINED
- Vector for: onchocerca gutterosa (river blindness)
WIWPHTH: produce toxins in saliva

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6
Q

Old world sand fly

A

Phlebotomus

  • their entire body is covered in hair
  • weak flyers
  • Host: warm blooded vertebrates
  • IH for: LESHMANIA sp –> dogs –> cutaneous & visceral leishmaniasis in humans
  • complex metmorphosis
  • nocturnal periodic parasite
  • breed in dark, humid, organic matter
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7
Q

Biting midges/No-see-ums

A

Culicoides

  • feed in swarms
  • Host: humans, warm blooded animals
  • Wings: mottled or SPOTTED
  • IH for: protozoans
  • Vector for: BLUE TONGUE virus
  • WIWPHTH: cause allergic rxn (dermatitis)
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8
Q

West Nile Mosquito

A

Culex

- Change feeding preference halfway through their lifetime (birds–>humans)

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9
Q

Yellow Fever Mosquito

A

Aedes aegypti

- also serve as vector for dengue fever

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10
Q

Malaria Mosquito

A

Anopheles

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11
Q

House Fly

A

Musca Domestica

  • fly from feces –> food
  • spongy mouthpart & sticky footpads = pathogen transmission
  • will lay eggs in wounds (Myiasis)
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12
Q

Face Fly

A

Musca Autumnalis

  • Found on face of cattle around eye
  • similar looking to musca domestica
  • Transmit Moraxella bovis (pinkeye)
  • eggs laid in COW MANURE
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13
Q

Blow Fly

A

Lucilia

  • Lay LARVA instead of eggs
  • shiny metallic look
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14
Q

Dog Penis Gnat

A

Hippelates

  • Tiny nonbiting gnats congregate around mucus secretions
  • Vector for: PINKEYE de to moraxella bovis
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15
Q

Tse Tse Fly

A

Glossina sp

  • both M&F take blood meal
  • Africa
  • Wing: CLEAVER/HATCHET cell
  • IH for Trypansoma –> NAGANA
  • Females only breed ONCE and give birth to 1 larva at a time
  • Control: sterile male release
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16
Q

Stable Fly

A

Stomoxys calcitrans

  • both M&F take blood meal (pointed ears)
  • Habitat: wet/rotting straw
  • BAYONET-LIKE mouth parts
  • WIWIPHTH: makes host more susceptible to disease
  • transmits pathogens (habronema muscae)
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17
Q

Horn Fly

A

Haematobia irritans

  • both M&F take blood meal
  • Host: cattle
  • 1/2 size of stable fly
  • lay eggs in FRESH COW MANURE
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18
Q

Sheep Ked

A

Melophagus ovinus

  • permanent ectoparasite in wool of sheep
  • WINGLESS
  • entire lc spent on host
19
Q

Bird louse

A

Lynchia

  • WINGED with fierce claws
  • all of LC spent on host
20
Q

Nasal mite

A

Pneumonyssoides caninum

  • nasal sinus of dogs
  • transmission via direct contact
  • legs on first half of body
21
Q

Follicle mite

A

Demodex canis

  • HAIR FOLLICLE
  • do NOT tunnel
  • alligator/cigar/carrot shaped
  • adults (8 legs), larva (6 legs)
  • WIWPHTH: produce inflammation (dermatitis)
  • Transmission: direct contact from mother to offspring
  • associated with immunodeficiency
  • deep skin scrape
  • the larger the ratio of immature forms to adults, the worse the prognosis
22
Q

Walking dandruff mite

A

Cheyletiella parasitivorax

  • Dogs, cats, rabbits
  • BELL PEPPER shaped
  • do NOT burrow
  • common in younger dogs
23
Q

Chigger

A

Trombicula

  • Only LARVAL feed (6 legs)
  • do NOT burrow
  • WIWPHTH: cause allergic reaction
24
Q

Mite of Dog

A

Sarcoptes scabei

  • long, unjointed
  • Host: humans, domestic and wild animals
  • TUNNEL in the epidermis of skin
  • muzzles, eyes, ears
  • Spread via DIRECT contact
  • deep skin scrape
  • ZOONOTIC
25
Q

Ear mite of Cat

A

Notoedres cati

  • long, unjointed
  • ears of cats
  • cousin to sarcoptes
26
Q

Rabbit ear mite

A

Psoroptes cuniculi

  • long, jointed
  • do NOT tunnel (SURFACE DWELLING)
  • direct contact
  • ears look like Kellogg’s corn flakes
27
Q

Large animal mite

A

Psoroptes bovis

  • REPORTABLE to state vet/USDA
  • SCABIES
  • do NOT tunnel- suck lymphatic fluid
  • long, jointed
  • direct contact
  • spends entire LC on skin
28
Q

Ear mite of dog and cat

A

Otodectes cyanotis

  • transmissible BETWEEN dogs and cats
  • short, unjointed
  • surface dwellers in external ear canal
29
Q

Scaley leg mite of Parakeet

A

cnemidocoptes pilae

  • Host: parakeets
  • long, unjointed
  • TUNNEL in beak and feet
  • cause SCALEY legs
30
Q

Deer tick

A

Ixodes scapularis

  • Large anal groove
  • THREE host tick
  • LYME DISEASE (borrelia burgdorferi)
31
Q

Brown Dog Tick

A

Rhipicephalus sanguineus

  • inornate
  • gets inside and will INFEST HOUSE
  • THREE host tick
  • most wide distribution, wide host range
  • Festoon
32
Q

Lone star tick

A

Amblyoma americanum

  • Large white spot on scutum (ornate)
  • THREE host tick
  • RMSF, Q fever, tick paralysis
33
Q

Texas cattle fever tick/Cattle fever tick

A

Boophilius annulatus

  • REPORTABLE to state vet/USDA
  • spreads bovine babesiosis(TX cattle fever)
  • 1 host tick (horse, sheep, goat, deer)
  • No festoon
  • inornate
  • nymph crawl on grass blades
  • Southern regions
34
Q

American Dog Tick

A

Dermacentor variabilis

  • Pattern on scutum (ornate)
  • rocky mountain spotted fever
  • 3 host tick
  • common in open areas with tall grass/brush
35
Q

Spinose ear tick of the Horse

A

Otobius megnini

  • SOFT TICK
  • PERIODIC PARASITE
  • only parasitic in LARVAL stage
  • NEITHER female/male engorges
  • 1 host tick
36
Q

Chewing Lice of Birds

A

Menopon gallinae

37
Q

Sucking Lice

A

Anoplura
- Haematopinus suis (pig)
(narrow head)

38
Q

Chewing Lice

A

Mallophagans

- Damalinia bovis (cattle)

39
Q

Horse Fly

A

Tabanus

  • largest fly
  • only females take blood meal
  • blade like mouthparts = vector for bacteria,
40
Q

Deer fly

A

Crysops

  • only females take blood meal
  • BANDED wings
41
Q

Northern mite of poultry

A

Ornthonyssus sylviarum

- domestic bird

42
Q

Red mite of poultry

A

Dermanyssus gallinae

  • blood red color
  • feed in PM
43
Q

Flesh Fly

A

Sarcophagia

44
Q

Foot and tail mite

A

Chorioptes equi

- Short, unjointed

Parasitology (15 decks)

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