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parasite that hangs out on the outside of the host
ectoparasite
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an arachnid is a __ or __
tick or mite
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insects are __, __, or __
fleas, lice, or flies
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ectoparasites include ___, ___, and ___.
insects, arachnids, and some nematodes
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3 typical signs of ectoparasites
- scratching
- rump dragging
- excessive licking and biting
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3 sample types we collect to test for :
a- mites
b- lice and mites
c- general collection
skin scraping
cellophane tape preps
parasite collection
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5 things you need for a skin scraping
- 1. #10 blade to dip in...
- 2. mineral oil
- 3. clippers
- 4. microscope
- 5. gloves
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what mite will you find superficially?
what mite will you find deep in the follicle?
sarcoptes scabei (scabies)
Demodex
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you need to scrape deep in skin until it oozes because this ectoparasite is deep in the follicle
demodex
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Name 7 mites
- Sarcoptes Scabei
- Demodex
- Notoedres Cati
- Chorioptes
- Cnemidocoptes pilae
- Psoroptes
- Cheyletiella
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what ectoparasite am I?
zoonotic!
long unjointed pedicle
entire life cycle in DH
bred on skin and burrow to lay eggs
symptoms include: puritis and dermatitis especially on the ears, ventrum, and elbows
- scabies
- Sarcoptes Scabei
- Mite
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what ectoparasite am I?
5 life cycles
lives in hair follicles and sebaceous glands
symptoms include: patchy alopecia, muzzle,face, and forelimbs
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what ectoparasite am I?
cats and rabbits are DH
life cycle is similar to Scabies
long unjointed pedicle
symptoms include: pruritis and dermatitis at ears, neck, back, face, and feet
yellow crusting around infected area
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what ectoparasite am I?
large animals and ruminants are DH
short unjointed pedicles.
symptoms include: serum exudate (oozing), pruritic feet, tail, legs, and distal limbs on horses.
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What ectoparasite am I?
infects parakeets
symptoms include: scaly leg in budgies on epidermis of feet and pads. honey comb masses.
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what ectoparasite am I?
infects rabbits
long jointed pedicles
symptoms include: external ear looks like dried cornflakes, inflammation, and increased karoten
- rabbit ear canker
- psoroptes cuniculi
- mite
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what ectoparasite am I?
short unjointed pedicles
highly transmissible
symptoms include: otitis externa, infected tail, head, and ears
- ear mite
- Ododectes Cynotis
- mite
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what ectoparasite am I?
non-burrower mite
likes fur and keratin layer of dermis
eggs hatch in 3 days
Nymphs molt to adults in 4 days
symptoms include: dermatitis, dry/scaly skin, alopecia, hyperpigmentation
- Walking Dandruff
- cheyletiella
- mite
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Cellophane tape prep is used to find ___ and ___.
which 4 spp do we find with cellophane tape preps.
lice and mites
cheyletiella, psoroptes, chorioptes, and pinworms
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what 3 tools do we need for cellophane tape preps
- scotch tape
- mineral oil
- glass slide
- cover slip
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which ectoparasite am I?
voracious blood feeding
8 legs w/claws
4 stages of life
dont like excessive weather
symptoms include: females saliva causes tick paralysis and death
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name two types of soft tick spp
- otobius megnini
- argas persius
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what is the common name for otobius megnini?
what is the common name for argas persicus?
otobius megnini = spinose ear tick
argas persicus = fowl tick
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which ectoparasite am I?
parasitic larval and nymphal stage
west US
dont get bigger as they engorge
symptoms include: deep ear canal waxy buildup
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which ectoparasite am I?
likes kennels and houses
dogs are DH only
scutum
hexagonal basis capitulum w/ lateral projecting legs
gray female when engorged
carries Babesia canis
symptoms include: severe anemia
- brown dog tick
- rhipicephalus sanguineus
- hard tick
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which ectoparasite am I?
rectangular bases capitulum
eastern US
grassy/ scrub-like areas
Rodents, dogs, humans are DH
carries RMSP which causes paralysis
ornate scutum w/ white striping
females are bluish gray when engorged
- Amercian Dog tick/ wood tick
- dermacentor variabilis
- hard tick
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which ectoparasite am I?
carries Borrelia borgdorferi
carries Ehrlichia
carries Hemobartonella
carries Babesia
white tail deer and humans is DH
- Deer tick/ Black legged tick
- ixodes scapularis
- hard tick
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Identify and name which ectoparasite carries it:
- Borrelia Burgdorferi
- spirochete bacteria
- Deer tick/ black legged tick
- ixodes scapularis
- hard tick
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Which ectoparasite am I?
scutum has white spot
southern US
carries Tularemia, RMSF
symptoms include: painful bits, anemia,
- Lone star tick
- Amblyomma americanum
- hard tick
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Which ectoparasite am I?
herbivores, dogs, humans are DH
humid environment
symptoms include: severe bites, swelling, tick paralysis, droopy pinna in ear infestations.
- Gulf Coast Tick
- Ambylomma maculatum
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Which ectoparasite am I?
all life cycles on DH
1 DH
carries Babesia bigemina
- Texas Cattle Fever Tick
- boophilus annulatus
- hard tick
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name 3 different insect ectoparasites.
lice
fleas
flies
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name 3 different types of lice
chewing lice
biting lice
sucking lice
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name 2 orders of lice
Mallophaga
Anoplura
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biting/ chewing lice
mallophaga
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name mallophaga lice
name anoplura lice
Trichodectes canis
Linognathus setosus
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Which ectoparasite am I?
transmittable by fomites or contact
pediulosis
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infestation that can cause anemia
pediulosis
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how can you dx lice
hair clippings and grab with forceps, put under microscope with mineral oil.
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which ectoparasites am I?
biting lice
4 wk life cycle all on DH
carries dipylidium caninum
symptoms include: itchy, irritable on skin, hair, and feathers
- Mallophaga
- Trichodectes canis
- biting lice
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Which ectoparasite am I?
all life cycles on host
transmissible by contact or fomites
carries Dipetalonema reconditum (false heartworm)
symptoms include: irritable skin, hair, and feathers
- anoplura
- Linognathus setosus
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Which ectoparasites am I?
2 spp
dogs, cats, and humans are DH
carries Dipetalonema reconditum
carries Dipylidium caninum
carries Bartonella
symptoms includes: skin dermatitis, irritation
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name 2 Ctenocephalides spp
C. canis
C. felis
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