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PARASITOLOGY > L5: Flies & Myiasis (MOST UTD) > Flashcards

L5: Flies & Myiasis (MOST UTD) Flashcards

1
Q

what does oviparous mean

A

flies lay eggs

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2
Q

what does ovoviparious mean

A

flies release larvae

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3
Q

what does hematophagous mean

A

flies feed on blood

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4
Q

what is myiasis

A

larval stage of fly feeds on host tissues

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5
Q

consequences of biting flies

A
  • disrupt normal behavior
  • inflammatory response to bites leads to further disruptive behaviors
  • pruritis, dermatitis, scratching, biting etc
  • transmit pathogens
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6
Q

how do non-biting flies irritate/damage the mucous membranes of their hosts

A

spines on their mouthpart

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7
Q

consquences of non-biting flies

A
  • transmit pathogens
  • myiasis can cause: tissue destruction, secondary bacterial infections and obstruction of respiratory / GI tracts
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8
Q

what are the 3 important genus of mosquitoes to know

A
  • Aedes
  • Anopheles
  • Culex
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9
Q

what are two important pathogens transmitted by mosquitoes

A
  • Canine heartworm
  • plasmodium - malaria
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10
Q

this fly causes simuliotoxicosis

A

Black flies
toxins build up in animals bitten by LOTS of black flies, causes them to go into shock and die

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11
Q

what are the 2 important species of black flies (Simuliidae)

A
  • Leucocytozoon spp. (devastating to birds, esp poultry)
  • Simulium - feed on blood of birds/mammals
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12
Q

Musca autumnalis

A

face fly
feed on ocular/nasal discharge of livestock

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13
Q

Musca domestica

A
  • housefly
  • most abundant insect pest associated w/ livestock, poultry and people
  • feed on ocular/nasal discharge and other bodily fluids
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14
Q

important species of Midges

A

Culicoides spp.
biters of mammals and birds

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15
Q

important parasite transmitted by midges

A

Leucocytozoon

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16
Q

what fly causes equine allergic dermatitis

A

Midges (Culicoides spp)

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17
Q

2 important species of Sandflies

A
  • Lutzomyia (new world)
  • Phlebotomus (old world)
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18
Q

pathogen carried by Sandflies

A

Leishmania spp.

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19
Q

Tabanus

A

horseflies

20
Q

Chrysops

A

deerflies

21
Q

pathogen carries by Horseflies (Tabanus) & Deerflies (Chrysops)

A

Trypanosoma spp
has large impact on hoofstock

22
Q

Haematobia spp

A

horn flies

23
Q

where do Haematobia spp. (hornflies) live in relation to their host

A

live on cattle

24
Q

Stomoxys spp.

A

Stable flies

25
Q

where do Stomoxys spp. (stable flies) live in relation to their host

A

on the legs

26
Q

Hippoboscidae

A

keds or louse flies

27
Q

Melophagus ovinus

A

Sheep ked
wingless, spend their entire life cycle on the host

28
Q

Glossinidae

A

tsetes flies
(Glossina spp.)

29
Q

Tsetes flies (Glossinidae) are vectors of what pathogen?

A

Trypanosoma bruceri
* causes nagara in domestic animals
* causes sleeping sickness in humans

30
Q

obligae myiasis

A

larvae require a live host for food

31
Q

facultative myiasis

A

larvae eat dead flesh (carrion) or sometimes infest a live animal

32
Q

Wohlfahrita vigil

A

gray flesh fly
-obligate myiasis

33
Q

what type of myiasis do Wohlfahrita vigil exhibit

A

(gray flesh flies)
obligate myiasis

34
Q

two important species of Blowflies

A
  • Cochliomyia hominivorax (new world screwworm) : obligae myiasis
  • Lucilia sericata (common green bottle fly): facultative myiasis
35
Q

Cochliomyia hominivorax

A

new world screwworm
type of blowfly

36
Q

what type of myiasis do cochliomyia hominivorax exhibit

A

obligate
(new world screwworm)

37
Q

what type of myiasis do Lucilia sericata exhibit

A

facultative
(Common green bottle fly)

38
Q

Oestridae

A

botflies

39
Q

what type of myiasis do Oestridae (botflies) exhibit

A

oestridae = botflies
obligate myiasis
adults don’t feed

40
Q

Oestrus ovis

A

Sheep nasal botfly

41
Q

Hypoderma spp.

A

Heel flies

42
Q

Gasterophilus spp.

A

Horse botlfies
cause GI myiasis

43
Q

Cuterebra spp.

A

botflies of rabbits and rodents

44
Q

consequences of Cuterebra spp. in dogs and cats

A

complications caused by wandering alrvae
- myiasis of eye, nasal, oral regions
- cerebrospinal cuterebriasis (potentially fatal)

normal hosts are rabbits and rodents

45
Q

fly that can cause cerebrospinal cuterebriasis in dogs/cats

A

Cuterebra spp. of botflies

PARASITOLOGY (15 decks)

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