E1 Flashcards
Bed Bugs
Cimex lectularius
- Found on headboard
- Hide during daytime
- Can survive without blood meal for 7 mo
- WIWPHTH: cause allergic reaction
Kissing Bugs
Triatoma
- Vector for Trypansoma cruzi (Chagas disease)
Centipede/Millipede
Myriapoda
- produces venoms/toxins
Aquatic arthropods
Crustacea
Black fly/Buffalo gnat
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
Old world sand fly
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
Biting midges/No-see-ums
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)
West Nile Mosquito
Culex
- Change feeding preference halfway through their lifetime (birds–>humans)
Yellow Fever Mosquito
Aedes aegypti
- also serve as vector for dengue fever
Malaria Mosquito
Anopheles
House Fly
Musca Domestica
- fly from feces –> food
- spongy mouthpart & sticky footpads = pathogen transmission
- will lay eggs in wounds (Myiasis)
Face Fly
Musca Autumnalis
- Found on face of cattle around eye
- similar looking to musca domestica
- Transmit Moraxella bovis (pinkeye)
- eggs laid in COW MANURE
Blow Fly
Lucilia
- Lay LARVA instead of eggs
- shiny metallic look
Dog Penis Gnat
Hippelates
- Tiny nonbiting gnats congregate around mucus secretions
- Vector for: PINKEYE de to moraxella bovis
Tse Tse Fly
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
Stable Fly
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)
Horn Fly
Haematobia irritans
- both M&F take blood meal
- Host: cattle
- 1/2 size of stable fly
- lay eggs in FRESH COW MANURE
Sheep Ked
Melophagus ovinus
- permanent ectoparasite in wool of sheep
- WINGLESS
- entire lc spent on host
Bird louse
Lynchia
- WINGED with fierce claws
- all of LC spent on host
Nasal mite
Pneumonyssoides caninum
- nasal sinus of dogs
- transmission via direct contact
- legs on first half of body
Follicle mite
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
Walking dandruff mite
Cheyletiella parasitivorax
- Dogs, cats, rabbits
- BELL PEPPER shaped
- do NOT burrow
- common in younger dogs
Chigger
Trombicula
- Only LARVAL feed (6 legs)
- do NOT burrow
- WIWPHTH: cause allergic reaction
Mite of Dog
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
Ear mite of Cat
Notoedres cati
- long, unjointed
- ears of cats
- cousin to sarcoptes
Rabbit ear mite
Psoroptes cuniculi
- long, jointed
- do NOT tunnel (SURFACE DWELLING)
- direct contact
- ears look like Kellogg’s corn flakes
Large animal mite
Psoroptes bovis
- REPORTABLE to state vet/USDA
- SCABIES
- do NOT tunnel- suck lymphatic fluid
- long, jointed
- direct contact
- spends entire LC on skin
Ear mite of dog and cat
Otodectes cyanotis
- transmissible BETWEEN dogs and cats
- short, unjointed
- surface dwellers in external ear canal
Scaley leg mite of Parakeet
cnemidocoptes pilae
- Host: parakeets
- long, unjointed
- TUNNEL in beak and feet
- cause SCALEY legs
Deer tick
Ixodes scapularis
- Large anal groove
- THREE host tick
- LYME DISEASE (borrelia burgdorferi)
Brown Dog Tick
Rhipicephalus sanguineus
- inornate
- gets inside and will INFEST HOUSE
- THREE host tick
- most wide distribution, wide host range
- Festoon
Lone star tick
Amblyoma americanum
- Large white spot on scutum (ornate)
- THREE host tick
- RMSF, Q fever, tick paralysis
Texas cattle fever tick/Cattle fever tick
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
American Dog Tick
Dermacentor variabilis
- Pattern on scutum (ornate)
- rocky mountain spotted fever
- 3 host tick
- common in open areas with tall grass/brush
Spinose ear tick of the Horse
Otobius megnini
- SOFT TICK
- PERIODIC PARASITE
- only parasitic in LARVAL stage
- NEITHER female/male engorges
- 1 host tick
Chewing Lice of Birds
Menopon gallinae
Sucking Lice
Anoplura
- Haematopinus suis (pig)
(narrow head)
Chewing Lice
Mallophagans
- Damalinia bovis (cattle)
Horse Fly
Tabanus
- largest fly
- only females take blood meal
- blade like mouthparts = vector for bacteria,
Deer fly
Crysops
- only females take blood meal
- BANDED wings
Northern mite of poultry
Ornthonyssus sylviarum
- domestic bird
Red mite of poultry
Dermanyssus gallinae
- blood red color
- feed in PM
Flesh Fly
Sarcophagia
Foot and tail mite
Chorioptes equi
- Short, unjointed
