No-seeums --> Louse flies Flashcards
What are some common names for No-seeums and biting midges?
Sweet itch
Queensland itch
Summer itch
What diseases are no-seeums and biting midges a biological vector for?
Blue tongue virus
African horse sickness virus
Epizootic Hemorrhagic Dz virus
Haemoproteus
Onchocerca cervicalis
- What geographical location would one find Sand flies in?
- List four morphological features of sand flies
- Widely distributed in the tropics, sub-tropics and around the Mediterranean
- Small in size, dull colored, hairy flies, short mouthparts, long legs, large black eyes, wings held erect over thorax when at rest
What do sand fly eggs require for successful hatching?
High humidity
Generally lay their eggs around roden burrows
What dz are sand flies a biological vector for?
Leishmania sp.
Suborder Brachycera. The Short horned flies
What two flies does this family contain?
Horse flies and deer flies
Genus Tabanus (Horse fly)
Genus Chrysops (Deer fly)
List two general characteristics of horse and deer flies
Large body
Short mouthparts w/ scissor-like stylets
What are horse flies and deer flies vectors for?
Mechanical vectors
- Equine infectious anemia
- Anaplasma
Biological vectors
- Trypanosoma theileri
- Loa Loa (filarial worm)
Suborder Cyclorrapha (think of the average house fly)
What are the two possible modes of parasitism in this order?
Adults feeding on body fluids or blood
Larval stages feeding on flesh or parasitizing tissues (known as myiasis)
What are the two larval types and common names which are produced by the suborder cyclorrapha species
Slender larva= maggots
Stout larva = bots or grubs
Family Muscidae (Cyclorrapha) in this family there are two separate modes of parasitism. What are they?
Non-blood sucking muscoids (housefly, or face fly)
Blood sucking muscoid (stable fly, horn fly, Tse-Tse fly)
Family Muscidae (non-bloodsucking muscoid)
Where do house flies lay their eggs and where are their larva developing?
Moist or semi-liquid medium
What is the unique feature of how houseflies feed?
Liquid feeders and will moisten their food by using a vomit drop
What dzs are houseflies vectors for?
Mastitis, conjunctivitis, and anthrax
Biological vector for:
- Draschia megastome* (stomach worm of horses)
- Habronema muscae* (stomach worm of horses)
Suborder Cyclorrapha: the face fly
Where do face flies lay their eggs and where are their larva developing?
Requires fresh undisturbed cow manure where the egg and larva develop
What do face flies feed off from?
Lacrimal, nasal, and salivary secretions
*They prefer birght sunshine and will not follow cattle into barns or other heavily shaded areas
What dzs are face flies vectors for?
Biological vector for
Thelazia (eye worm)
Mechanical vector for
Moraxella bovis (pink eye or keratoconjunctivits in cattle)
How does one go about controling face fly populations?
Topical organophosphates
Ear tags impregnated with insecticides
Proper management of manure and feed (reduce breeding grounds)
Cyclorrapha: The stable fly
Where do stable flies lay their eggs and where are their larva developing?
Lay eggs and larvae feed in moist, decaying vegetable debris including manure
What are some unique characteristics of the stable fly and what is the scientific name?
Characteristics
- Found worldwide
- both sexes feed on blood
- after feeding they rest head up
- strong fliers
Scientific name
- Stomoxys calcitrans
What are stable flies a biological vector for?
Mechanical vector
Trypanosomes (blood protozoa)
Biological vector
Habronema microstoma (stomach worm)
Cyclorrapha: The horn fly
Where do stable flies lay their eggs and where are their larva developing?
Dependent upon fresh cow manure
What are some unique characteristics of horn flies?
Weak fliers
Tend to stay associated with the animal
Rest with their head down
Horn flies are a vector for what?
Biological vector
Stephenofiliaria
(small, filarial parasite that causes a circumscribed dermatitis along the ventral midline of cattle)
