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Parasitology Exam 3 > PPT.1 > Flashcards

PPT.1 Flashcards

1
Q

house fly

A

Musca domestica

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2
Q

face fly

A

Musca autumnalis

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3
Q

stable fly, biting house fly

A

Stomoxys calcitrans

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4
Q

horn fly

A

Haematobia irritans

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5
Q

what is used for Identification of Diptera (flies)

A

size of fly
mouthparts
location on animal or host
location of eggs

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6
Q

Life cycle of Diptera

A

E-L-P-A ( Egg-Larvae(3)-Puparium-adult)

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7
Q

Musca domestica hosts?

A

domestic animals and humans

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8
Q 
what insect is this?
adults 5.5-7.5mm
light to dark grey
sticky hairs on pads of legs
mouthparts fleshy adapted to sponging
A

Musca domestica

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9
Q

face fly

A

Musca autumnalis

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10
Q

eggs laid in feces or rotting organic material

A

Musca autumnalis

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11
Q

site of infestation: animal secretions and wounds

A

Musca autumnalis

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12
Q

pathogenesis and lesions:
annoyance
mechanical vector of viruses, bacteria, helminths, protozoa
biological vector of habronema and draschia megastoma

A

musca autumnalis

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13
Q

clinical signs:
annoyance can interfere with grazing
annoyance can result in a drop in performance
can result in eye disorders or conjunctivitis

A

Musca autumnalis

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14
Q

stable fly, biting house fly

A

stomoxys calcitrans

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15
Q

hosts: most animals and humans

A

stomoxys calcitrans

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16
Q

adults 5.5-7.5mm
mouthparts rigid, conspicuous and forward projecting
sits on walls head up

A

stomoxys calcitrans

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17
Q

life cycle:
feeds on blood
require 3 minutes to finish its blood meal
females lay eggs on decaying matter such as damp hay

A

stomoxys calcitrans

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18
Q

pathogenesis and lesions:

attack animals, transmit disease organisms

A

stomoxys calcitrans

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19
Q

Clinical signs:
increased head and ear movement
skin twitches and tail swishes

A

stomoxys calcitrans

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20
Q 
treatment and prevention:
screens
sanitation; reduce breeding sites
various insecticides
treat horse and environment
Do not treat compost
A

stomoxys calcitrans

musca autumnalis

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21
Q

horn fly

A

Haematobia irritans

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22
Q 
host: cattle
identification:
adults 4mm
smallest of bloodsucking muscids
distinguish from stable fly being 1/2 size and shorter proboscis
A

Haematobia irritans

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23
Q

Life cycle: remain on host except when females lay eggs in fresh feces
overwinter( diapause, pupa)

A

Haematobia irritans

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24
Q

site of infestation:
back in swarm
abdomen when raining
cluster around horns when not feeding

A

Haematobia irritans

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25
Q 
Pathogenesis,lesions,clinical signs:
feed in thousands
causes intense irritation
impair milk production and weight gains
transmit cattle helminths
more than 200 flies leads to economic losses
A

Haematobia irritans

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26
Q

Treatment and prevention:
apply to host since fly remains on host most of time
insecticide resistance

A

Haematobia irritans

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27
Q

family ceratopogonidae

A

Culicoides

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28
Q

family muscidae

A

Musca domestica
Musca autumnalis
Stomoxys calcitrans
Haematobia irritans

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29
Q

only females take blood meals

A

culicoides

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30
Q

biting midges, “no-see-ums”

A

culicoides

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31
Q 
hosts:
all domestic animals and humans
id:
1.5-5.0mm long
mottled wings, short piercing proboscis, antenna long and slender
A

Culicoides

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32
Q

site of infestation: general
pathogenesis and lesions:
annoyance
transmits protozoa, helminths(onchocerca) and viruses

A

culicoides

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33
Q

Clinical signs:
pain inflicted outweighs size of fly
allergic reaction in some horses

A

culicoides

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34
Q 
diagnosis: fly identification
treatment and prevention:
decrease standing water 
avoid marshy pastures
treat horses: repellents, insecticides
A

culicoides

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35
Q

What do all adult flies have in common?

A

nuisance

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36
Q

where do the larvae of stomoxys calcitrans develop?

A

damp hay or similar decaying organic matter

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37
Q

where does Haematobia irritans lay its eggs?

A

fresh cattle manure

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38
Q

(Diptera) Insects that belong to family Tabanidae ?

A

Tabanus

Chrysops

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39
Q

horse fly

A

Tabanus

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40
Q

hosts:

large domestic or wild animals, humans, small mammals, birds

A

Tabanus

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41
Q

Identification:
stout bodied fly 10-25mm
Mouthparts slashing and sponging

A

Tabanus

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42
Q

What fly has a very painful bite where they cut a wound first and then sponge the blood?

A

Tabanus

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43
Q 
what insect is this?
pathogenesis and lesions: 
painful bites
efficient mechanical vectors of several diseases
clinical signs: annoyance
A

Tabanus

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44
Q

Deer fly

A

Chrysops

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45
Q 
identification: 
dark bands across wings 
elongate antennae
bite horses in shaded areas
horses will stand in sun to avoid
all other aspects like tabanus spp :
{stout bodies fly 10-25mm
mouthparts slashing and sponging}
A

Chrysops

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46
Q

what is the difference between the horse fly and deer fly when it comes to Identification?

A

( chrysops)deer flies have dark bands across wing and they bite horses in shaded areas while (tabanus)horse fly doesn’t.

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47
Q

Diagnosis:

which of the tabanids prefer the shade?

A

Chrysops

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48
Q

Treatment and prevention:
cannot control via breeding sites because diffuse and difficult to detect
control in housing and on animals( repellents, insecticides)

A

Tabanids:
Tabanus(horse fly)
chrysops (deer fly)

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49
Q

Diptera(fly) that belongs to family Hippoboscidae?

A

Melophagus ovinus

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50
Q 
host: sheep
Identification:
Flattened, hairy wingless dipteran
blood sucking mouthparts
site of infestation: wool
A

Melophagus ovinus

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51
Q

Life cycle:

female produces one egg which hatches inside her body

A

Melophagus ovinus

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52
Q 
Life cycle:
Third instar adheres to fleece.
immobile instars pupate(3-4mm)
and visible on fleece
adults emerge in 3wk in summer, longer in winter
 ( approx. 6wks)
(whole life cycle on host)
A

Melophagus ovinus

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53
Q

The infestation of living animals with larvae of dipteran flies

A

Myiasis

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54
Q

(Myiasis)

Facultative

A

optional ( calliphorids)

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55
Q

(Myiasis)

Obligatory

A

Can not survive without host ( oestrids)

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56
Q

another name for cutaneous myiasis?

A

” fly strike”

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57
Q

maggots causing fly strike belong to which family?

A

Calliphoridae and Sarcophagidae

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58
Q

Fly strike is caused by the larvae or adults?

A

LARVAE

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59
Q

Fly worry is caused by the larvae or adults?

A

ADULTS

60
Q

The blow flies

A

Calliphoridae

61
Q

Calliphoridae include….

A

the new world screwworm and the old world screwworm

62
Q

Flesh flies

A

Sarcophagidae

63
Q

what flies belong to the family Oestridae?

A

Cuterebra
Hypoderma
Oestrus

64
Q

what flies adults are large hairy flies, have nonfunctional mouthparts and are short-lived? from which family are they?

A

family oestridae
cuterebra
hypoderma
oestrus

65
Q

flies who sole job is to reproduce and lay eggs and then they die? from what family?

A

Family Oestridae
Cuterebra
hypoderma
oestrus

66
Q

what larvae are obligatory parasites and host specific?

A

Cuterebra, hypoderma and oestrus from family oestridae?

67
Q

Rodent or rabbit bot fly

new world skin bot flies

A

Cuterebra

68
Q

Hosts:
RODENTS, RABBITS,
squirrels, chipmunks,mice,dogs,cats. ZOONOTIC!

A

Cuterebra

69
Q

what is the diptera or fly that is identified by third stage instar and season, most commonly found in spring and summer?

A

Cuterebra

70
Q

Adult bot fly(20-30mm) with vestigial mouthparts. 3rd stage instar is dark brown and covered with black spines.

A

Cuterebra

71
Q

what fly the pupae stage is not found on host and is found on the ground?

A

Cuterebra

72
Q

what fly life cycle is like this?
the final host ingest the eggs, develop to 1st instar and migrate to subcutis develop to 3rd instar, when it matures it drops to the ground and pupates then the adult emerges.

A

Cuterebra

73
Q

Site of infestation:

subcutaneous connective tissue, can locate in nasal and oral regions and migrate to the brain

A

Cuterebra

74
Q

Pathogenesis and lesions:

fibrotic cyst forms from instar in subcutaneous tissue. instar in brain of cat can lead to infarction.

A

Cuterebra

75
Q

Clinical signs:

Lump in neck, fur constantly wet, hole drips fluid

A

Cuterebra

76
Q

Diagnosis:
Instar can be removed whole( carefully because if liquid is squished out of mature instar then it will cause a reaction)
Type 1 hypersensitivity type reaction
wound heals slowly

A

Cuterebra

77
Q

common name-adults:
warble fly, heel fly
ox warble

A

Hypoderma

78
Q

common name-instar:

cattle grub

A

Hypoderma

79
Q

Host: cattle
identification: typical oestrid

A

Hypoderma

80
Q

in both species of this fly the instar will overwinter inside the animal and will only migrate to subcutaneous in spring after winter has passed. what are the species?

A

Hypoderma lineatum and hypoderma bovis

81
Q

Life cycle: over winter as 1st instar

which fly accumulates in submucosa of esophagus?

A

Hypoderma lineatum

82
Q

Life cycle: over winter as 1st instar

which fly accumulates in epidural fat of spinal cord?

A

Hypoderma bovis

83
Q

life cycle:

which fly is laid in lines of 6 or more on lower limb; active beginning of summer?

A

Hypoderma lineatum

84
Q

Life cycle:

which fly their eggs are laid singly, and is active in late summer?

A

Hypoderma bovis

85
Q

site of infestation:

3rd stage instars found in lumps(warbles) on backs of cattle in spring

A

Hypoderma spp.

86
Q

Pathogenesis and lesions:

3rd stage larvae under skin cause damage and downgrade carcass; economic loss

A

Hypoderma spp.

87
Q

what species of hypoderma causing bloating because of the death of the arrested larvae or instar?

A

H. lineatum

88
Q

what species of hypoderma cause paraplegia because of the toxins it releases when it dies in its arrested stage in the animal?

A

H. bovis

89
Q

Clinical signs:
faulty regurgitation, bloat
paraplegia

A

Hypoderma spp.

90
Q

what is the treatment and prevention for hypoderma spp.?

A

MCLs kill early stages and timing before they get to their arrested stages in the winter ya sea el esophagus or spinal cord

91
Q

sheep nasal bot

warble fly of sheep

A

Oestrus ovis

92
Q 
what fly is this?
Host: sheep, goats, llamas, humans( generally speaking they don't further develop on humans)
Identification:
adults 1cm long
nasal bots 3 cm long, yellowish white
A

Oestrus ovis

93
Q

it has bee like appearance and lack of mouthparts what fly is it?

A

Oestrus ovis

94
Q

what fly is it?
Life Cycle:
female deposits 1st stage installs into nostrils of sheep during flight
overwinter stage(2wk-9months)
developing bots feed on mucus, cause irritation

A

Oestrus ovis

95
Q

In frontal sinuses develop to 2nd and 3rd stage instars what fly is it?

A

Oestrus ovis

96
Q 
Life cycle:
Reach 3rd instar stage(3wk-several months) before sneezed out to pupate(4-7wk)
adults emerge, female survive for 2 wk, 
depositing 500 instars
what fly is this?
A

oestrus ovis

97
Q

Pathogenesis and lesions/clinical signs:
Instars irritate with hooks an spines and excessive secretion(snotty nose)
bacterial infection common
to avoid attacks animals expend much energy and lose condition and weight

A

oestrus ovis

98
Q

Copious nasal discharge ( snotty nose)

what fly?

A

Oestrus ovis

99
Q

Pathogenesis and lesions/clinical signs:
Aberrant migration through soft pallet may enter brain cavity but is relatively rare
humans can become infected in the eye or lip but does not develop further
what fly is it?

A

Oestrus ovis

100
Q

What is the treatment for oestrus Ovis?

A

MCLs at beginning of summer and again midwinter

101
Q

what flies(diptera) are in the family gasterophiliidae?

A

Gasterophilus spp.

  • intestinalis
  • nasalis
102
Q

what is gasterophilus app. common name?

A

Bot fly larvae

Bot fly

103
Q

fly that is Host specific for horses?

A

Gasterophilus spp.

104
Q

How can you differentiate G. intestinalis form G. nasalis?

A

differentiate based on color and spines.

105
Q

what fly is this? be species specific!
Life cycle:
egg hatches to 1st stage instar when licked( this eggs are more laid on the legs); attached to tongue/lips
in oral cavity 1st to 2nd stage instar, swallowed; develop 3rd stage instar ( site specific); live up to 12 months
spring pass in feces, pupate
3-9wk adult fly

A

Gasterophilus intestinalis

106
Q

which fly is this? be species specific!
Life cycle:
Egg hatches to 1st stage instar spontaneously; crawls into mouth, these eggs are more laid close to mouth.
In oral cavity 1st to 2nd stage instar
swallowed; developed 3rd stage instar (site specific); live up to 12 months
spring pass in feces, pupate
3-9wk adult fly

A

Gasterophilus nasalis

107
Q

what fly is this?( species specific)
Eggs on forelegs and shoulder
3rd stage instars in non-glandular part of stomach and cardiac region

A

Gasterophilus intestinalis

108
Q

what fly is this?(species specific)
Eggs on intermandibular space
3rd stage instars attach around pylorus and duodenum

A

Gasterophilus nasalis

109
Q

Name the bot flies?

A

Gasterophilus intestinalis

gasterophilus nasalis

110
Q

what is the color of gasterophilus intestinalis in fresh feces?

A

Red

111
Q

what is the color of gasterophilus nasalis in fresh feces?

A

yellow

112
Q

how many rows of spines G. intestinalis have?

A

2

113
Q

how many rows of spines G. nasalis have?

A

1

114
Q

site of eggs laid :
forelegs and shoulders
what bot fly is this?

A

G. intestinalis

115
Q

site of eggs laid:
intermandibular spaces
what bot fly is this?

A

G. nasalis

116
Q

site of infestation of 3rd instar: stomach

what type of bot fly is this?

A

G. intestinalis

117
Q

site of infestation of 3rd instar: small intestine

A

G.nasalis

118
Q 
what bot fly is this?
Pathogenesis and lesions:
adult flies an annoyance 
attached instars can provoke an inflammatory reaction
clinical signs: fly worry
A

Gasterophilus spp.

119
Q

what bot flies is this?
diagnosis:
differentiate based on color, spines, and location in host
seen during gastroscopy

A

Gatserophilus spp.

120
Q

what bot fly is this?
treatment and prevention:
manual removal of eggs
endoparasiticides for instar stages

A

Gasterophilus spp.

121
Q

The larvae of hypoderma lineatum overwinter within the loose connective tissue of the submucosa of the caudal one third of the esophagus. where do the larvae of hypoderma bovis overwinter?

A

epidural adipose tissue between the dura mater and periosteum, near the first lumbar vertebra.

122
Q

which fly causes snotty nose of sheep and goats?

A

Oestrus ovis

123
Q

Fly that spends whole life cycle on host and may be mistaken as a tick?

A

Melophagus ovinus

124
Q

which diptera(fly) belong to the family calliphoridae?

A

Cochliomyia hominivorax

125
Q

what is the common name of cochliomyia hominivorax?

A

screwworm

126
Q 
Which fly is this?
Hosts:livestock
identification:
10mm, bluish green flies
three stripes on thorax
orange brown eyes
A

cochliomyia hominivorax

127
Q

which fly is this?
Life cycle:
larvae feed invasively on living tissue
adult females mate only once in entire life

A

Cochliomyia hominivorax

128
Q

which fly lay their eggs on fresh uninffected wounds?

A

Cochliomyia hominivorax

129
Q 
which fly is this?
pathogenesis, lesions, clinical signs:
wounds attract female flies
causes blowfly strike
foul smelling lesion
rapidly leads to death of host
A

cochliomyia hominivorax

130
Q 
Diagnosis:
recognition of maggots in lesions
must report to vet authorities immediately
place diptera larvae in alcohol
which fly is this?
A

cochliomyia hominivorax

131
Q

which fly is this?
Treatment and prevention:
treat wounds
releasing sterile males

A

cochliomyia hominivorax

132
Q

which fly is this?
Recent development:
Date of start of the outbreak: 13 July 2016
affected population: key deer from a wildlife refuge in big pine key, Florida
more than 30 years that the last occurrence of this fly was reported.

A

cochliomyia homninivorax

133
Q

The common name of sarcophagidae?

A

flesh flies

134
Q 
what fly is this?
Host: any animal
identification:
adults 2x the size of houseflies
instars larger than houseflies
A

Flesh flies

135
Q

what fly is this?
Life cycle:
Lay 1st stage instars in sores, wounds, necrotic tissue, wool soiled with feces or urine
develop to 3rd stage instars and leave host to pupate
Pupae overwintering stage
site of infestation:
skin, wool

A

Sacrophagidae

136
Q 
what fly is this?
Treatment and prevention:
Prevent situations that attract flies by
-sanitation
-improved husbandry
-tail docking
Treat wounds immediately
A

Sacrophagidae

137
Q

What are the Pthiraptera insects?

A

Lice

138
Q

what is the life cycle of Pthiraptera(lice)?

A

E-N-N-N-A

They spend their whole lifecycle on host and are host specific.

139
Q

what 2 suborders are included in Pthiraptera (lice)?

A

Ischnocera( Mallophaga)

Anoplura

140
Q

what suborder are the biting, chewing lice?

A

Ischnocera

141
Q

what type of lice( suborder) has the mandible mouthpart bigger than the thorax?

A

Ischnocera

142
Q

what type of lice is this?(suborder)
FEED ON SKIN, HAIR, FEATHERS, OTHER ORGANIC MATERIAL
3MM, YELLOW
Rapid movement to move over skin and covering
often bird lice

A

Ischnocera ( Mallophaga)

143
Q

what lice are included in the suborder Ischnocera?

A

Trichodectes canis
felicola subrostratus
damalinia bovis
Damalinia ovis

144
Q

what is the common name of Trichodectes Canis?

A

Dog biting louse or canine chewing louse

145
Q

what lice is this?
Host: dog
id:
yellowish color, biting/chewing mouthparts, active louse, adults 2mm

A

Trichodectes canis

146
Q

what lice is this?
Life cycle: female lays eggs. develop to nymphs and adults. Require host to complete life cycle.
if you comb the eggs off they won’t be able to finish their life cycle.

A

Trichodectes canis

Parasitology Exam 3 (1 decks)

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