Flies that suck blood Flashcards
What is the scientific name of Black Fly?
Simulium spp
What is the common name of Simulium spp?
Black Fly
Buffalo gnat
What does a bite from a Black fly cause?
Onchocerciasis aka River Blindness
What does Onchocerciasis cause?
Blindness Skin lesions Enlarged lymph nodes Inflammation Fibrosis
What is the scientific name of Biting Midges?
Culicoides spp
What is the common name of Culicoides spp?
Biting mideges
“No-see-ums”
What are the clinical signs of bite from a Culicoides spp?
Dermatitis, skin lesions
What are the clinical signs of sheep with a bite from Culicoides spp?
Swollen ears, nose, neck
Excessive salivation
What does a bite from Culicoides spp cause in horses?
Anaphylaxis
What pathogenesis does Culicoides spp cause?
Mansonella (filarial worms)
Bluetongue virus (sheep/cattle)
African horse sickness
What is the zoonosis of Culicoides spp?
Oropouche fever from Culicoides paraensis
What is the common name of Anopheles spp, Aedes spp, and Culex spp?
Mosquitos
What is the pathogenesis of Anopheles spp?
Malaria
What is the pathogenesis of the Aedes spp?
Zika virus
Yellow fever
What is the pathogenesis of Culex spp?
West Nile Virus
Equine infectious anemia
What do Anopheles spp, Aedes spp and Culex spp all cause?
Heartworm
What is the definitive host of Chrysops spp and Tabanus spp?
Horses Cattle Humans Dogs Etc
What is the common name of Chrysops spp?
Deer fly
What is the common name of Tabanus spp?
Horse-flies
What are the clinical signs of Chrysops and Tabanus spp?
Painful bites
Chrysops spp and Tabanus spp are common vectors for what disease?
Equine Infectious Anemia (EIA)
How do you tell a horse fly and a deer fly apart?
Horse Fly (Tabanus spp) = Big Deer Fly (Chrysops spp) = Look almost triangular when viewed from above
Is Chrysops and Tabanus spp zoonotic?
No
What is the common name of the Stomoxys spp?
Stable fly, biting housefly
What is the predilection site of Stomoxys sp?
Legs
Abdomen
Ears
What is the clinical signs of Stomoxys sp?
Hair loss
Dried blood
What does Stomoxys sp cause?
Equine infectious anemia
Anthrax
What zoonosis does Stomoxys sp have?
Possible anthrax
West nile fever
What bacteria causes anthrax?
Bacillus anthracis
What is the most important method of control for Stomoxys sp?
Sanitation
What is the definitive host of the horn fly?
Cattle Buffalo Bison Horses Other large animals
What are the clinical signs of a horn fly infestation?
Decreased milk production Poor feed efficiency Reduced weight gain Painful papules and wheals Ventral midline dermatitis
What is the pathogenesis of the Horn fly?
Host for Stephanofilaria stilesi
What is Stephanofilaria stilesi?
A filarial parasite that produces plaque-like lesions on the ventral abdomen of cattle
What do horn flies look like?
Dark color
Bayonet-like proboscis that protrudes forward from the head
Does the Horn fly cause any zoonosis?
No
What is the definitive host of the sheep ked?
Sheep and Goats
What is the predilection site of Sheep ked?
Deep within the sheep’s wool or the goat’s fleece
What are the clinical signs of a Sheep ked infestation?
Pruritis Weight loss Anemia Anxiety Reduction in wool growth
How are sheep ked transmitted?
Direct contact with infested animals
Sheep Ked are reported to be responsible for the transmission of what viruses and bacteria?
Bartonella spp Anaplasma spp Bluetongue virus Border disease virus Rickettsia spp Trypanosoma malophagium
How is sheep ked treated?
With insecticides after shearing, best results are from insecticides that have residual activity of over 3-4 weeks
What is the economic impact of Sheep Ked?
Reducing the production of meat, milk and wool
When sheep bite and scratch themselves what does it do to the fleece?
Thin
Ragged
Dirty
Defect in hides
What species of flies does the female suck blood?
Simulium spp Phelbotomine sand flies Culicoides spp Anopheles, Aedes, Culex Chrysops spp Tabanus spp
What species of flies do both males and females suck blood?
Tsetse fly
Stomoxy’s sp
Horn fly
Sheep ked