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87 Cards in this Set
- Front
- Back
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What are veterinary impacts of ectoparasites? |
Blood loss
Myiasis Skin disease (alopecia, inflammation, pruritis, hypersensitivity) Vectors for disease |
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What are the two types of insect lifecycles?
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Holometabolous
Hemimetabolous |
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What family comprises the fleas?
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Siphonoptera
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What do flea adults feed on? Flea larvae?
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Adults - blood
Larvae - blood laden debris (adult flea poo) |
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What distinguishes the dog/cat fleas from other fleas?
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Pronotal and genal ctenidium (combs)
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How long can a FED adult flea live off-host? How about an UNFED adult flea?
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Fed - 1-2 d
Unfed - 6-8 mos |
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What are the fleas of cats? Of dogs?
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Ctenocephalides felis
C. canis |
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What is the sticktight flea? What is its host?
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Echidnophagia gallinaceae; feeds on birds
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What is the Oriental rat flea? This is the vector for which disease?
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Xenopsylla cheopis;
vector for Yersinia pestis |
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What type of life cycle do Siphonopterans undergo?
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Holometabolous
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What are the suborders of bloodsucking flies? What types of dipterans are within each group?
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Nematocera (mosquitoes and gnats)
Brachycera (horse and deer flies) |
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Some members of which dipteran suborder invade tissues? What is the name for this group of flies that invades tissues?
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Cyclorrhapha;
called the myiasis flies |
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To which group do biting midges belong? Which nematode are they the vector for?
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Ceratopogonidae;
Oncocerca cericalis (threadworms) |
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What is the face fly? What is it the vector for?
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Musca autumnalis;
Thelazia (eyeworm) vector |
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This micropredatory fly is the vector for Habronema microstoma.
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Stable fly (Stomoxys calcitrans)
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How are dipteran larvae identified?
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Mouthpart and spiracle morphology
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What do Stableflies and Hornflies have in common?
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Both the vector for Habronema microstoma.
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Which flies are parasites and vectors of Habronema microstoma?
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Hornflies (Siphonia irritans)
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T or F:
Siphonia irritans lay eggs on the host which fall-off and pupate in pasture. |
False! The fly leaves the host to lay eggs.
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T or F:
Keds are members of the muscid flies that have lost their wings. |
Falsorino!
They are Hippoboscid flies |
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What is the most significant ked of sheep?
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Sheep ked (Melophagus ovinus)
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Greenbottles and Bluebottles are members of which group of flies?
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Calliphorid flies
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T or F:
Larvae of callaphorid flies only feed on necrotic tissue. |
False!
Some feed on living tissue! |
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What are the two flesh-eating calliphorid flies (screw worms)? Which feed on living tissue?
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Cochliomyia hominivorax (American Screw Worm) - live flesh
Lucilia cuprina (wool strike in sheep) - necrotic tissue |
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Infestation of organs and tissues of host by larval stages of dipterous flies is known as...
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...Myiasis
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T or F:
Screw worms are host-specific and bot flies have a broad host specificity. |
False!
Bots are pretty specific and screw worms don't care who they screw! |
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Name that bot!
...sheep nasal bot |
Oestrus ovis
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Name that bot!
...Oestrus ovis |
Sheep Nasal bot
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Name that bot!
...heel flies/warbles |
Hypodermatidae
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Name that bot!
...Hypodermatidae |
Heel fly/warble
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Name that bot!
...stomach bot |
Gaterophilidae
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T or F:
The sheep nasal bot is generally non-pathogenic. |
True!
Although it can get into the brain... |
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What is a main difference between bots and cuteribridae?
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Bots are host-specific
Cuteribrids are not |
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What is the main pathogenesis of the equine stomach bot?
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Via gadding behavior!
Pretty little enteric pathogenesis. |
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What are the normal hosts of Cuteribridae?
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Rabbits and rodents
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Name that bot!
...rodent bot |
Cuteribridae
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What family are the keds in?
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Hippoboscidae
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What are the two main types of lice?
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Biting (Mallophaga)
Sucking (Anoplura) |
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T or F:
Fleas are laterally flattened and have holometabolous development while lice are dorsoventrally flattened and have hemimetabolous development. |
Verdad!
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Why is it easier to treat lice than fleas?
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Lice have no off-host reservoir
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T or F:
Lice are more host specific than fleas. |
True!
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Let's play, NAME THAT LOUSE!!!
...dog chewing louse |
Trichodectes canis
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The dog louse is the vector for which parasite?
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Dipylidium caninum (tapeworm)
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Let's play, NAME THAT LOUSE!!!
...cat chewing louse |
Felicola subrostratus
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Let's play, NAME THAT LOUSE!!!
...biting horse louse ...biting cow louse ...biting sheep louse |
...Damalinia (Bovicola) equi
...Damalinia (Bovicola) bovis ...Damalinia (Bovicola) ovis |
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What louse-affiliated condition kills deer in the northwest in the winter?
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Deer Hair Loss Syndrome
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Compare/contrast Mallophaga and Anoplura in terms of host specificity and infestation site specificity.
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Both host specific.
Mallophaga - site non-specific Anoplura - site specific |
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What are the two common genera of Anoplura?
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Haematopinus
Linognathus |
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Which Haemotatopinus spp. cause the most damage? Which animals do they affect?
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H. eurystermus (cattle)
H. asini (horses) H. suis (swine) H. quadripertusus (cattle tail louse) |
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Which louse may be implicated in transmission of Swine Fever?
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H. suis
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Which Linognathus spp. are of veterinary importance? Which animals do they affect?
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L. stenoposis (goat)
L. ovillus (face of sheep) L. pedalis (foot of sheep) L. vituli (long nose cattle louse) L. africanus (african cattle) L. setosus (South American dog) |
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What do avian Mallophaga feed on?
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Feathers, dry skin, scales, etc
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T or F:
All human lice are Anoplurans. |
True! All sucking lice!
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Which cestode uses a mite as an intermediate host?
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Anaplocephala
Moniezia |
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Contrast Mites and Ticks in terms of size, mouthparts, and parasitic nourishment.
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Mite small, tick BIG
Mite whimpy mouth; tick well-developed mouth (hypostome) Mite eats lymph and secreta; tick eats blood and lymph |
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T or F:
Most damage caused by mites is indirect. |
False!
It is usually direct in the form of irritation and allergic response leading to self-trauma |
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Which mite family causes respiratory problems?
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Halarachnidae
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Which group of mites live in follicles?
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Demodicidae
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T or F:
The Demodicidae are rigidly host specific, therefore zoonoses are unheard of with this group. |
True
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What is the cause of Demodicosis in dogs?
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Demodex canis
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What causes scabies?
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Sarcoptes scabiei
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What are the two types of mites in astigmata that we learned about? How does each cause mange?
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Psoroptidae --> sucking mange
Sarcoptidae --> burrowing mange |
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What is a Chupacabra?
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Probably a coyote w/Sarcoptic mange
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What is a major sequel to the burrowing of Sarpotes mites?
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Secondary infections and pruritis dermatitis
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Name that mite!
...nasal mite of dogs |
Pneumonyssoides caninum
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Here is the mange...tell me the animal!
Notoedric mange |
Feline scabies
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Here is the mange...tell me the animal!
Sarcoptic mange |
Canine scabies
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Here is the mange...tell me the animal!
Chorioptic mange |
Equine/Bovine scabies
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What is the definitive host for Nanophyetes salmincola?
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Humans
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What is the definitive host for Nanophyetes spp.?
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Lots (cats, dogs, raccoon, fox, etc)
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What is the first and second intermediate host for Nanophyetes salmincola?
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1st - snail
2nd - salmonid |
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What pathogen is carried by Nanophyetes salmincola?
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Neorickettsia helminthoeca
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T or F:
Neorickettsia helminthoeca only affects canids. |
True!
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T or F:
Nanophyetes salmoncola causes salmon poisoning in canids only. |
False!
Neorickettsia helminthoeca is the pathogen; N. salmincola is the vector! |
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Choose EPA or FDA labeling...
...drug has systemic effects. |
FDA
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Choose EPA or FDA labeling...
...requires prescription. |
FDA
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Choose EPA or FDA labeling...
...applied topically and stays topical. |
EPA
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Choose EPA or FDA labeling...
...pesticide. |
EPA
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Which worm phylum has a spiny proboscis and can be extremely damaging on a per-worm basis?
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Acanthocephala
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What is the definitive host for Macracanthorhynchus hirudinaceus? The intermediate host?
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Pig is definitive;
beetles/grubs are intermediate |
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What is the definitive host for Macracanthrorynchus ingens? The intermediate host? A possible paratenic host?
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Definitive - dogs
Intermediate - la cucaracha Paratenic - reptiles |
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Acanthocephalins cause severe disease in which animal group? What is the intermediate host in this case?
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marine birds;
crab intermediate host |
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What are some strategies that parasites use to increase transmissision?
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Alter appearance
Alter host behavior Photoreaction Escape Behavior Vertical distribution |
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This "worm" is actually related to arthropods and infects reptiles and fish.
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"Tongue Worm" (Pentostome)
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This pentostome has adults in the nasopharynx of carnivores but encycsts in prey mammals.
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Lingulata serrata
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This crustacean is a parasite of fish. Which group of these is specific to koi and carp?
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Brachiurans; Argulus on koi and carp
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What are some clinical signs for copepod infection in fish?
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Lethargy
Flashing Emaciation Secondary fungal/bact infxn Copepods visible |
