Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Equine Ectoparasites

Equine external parasites - scientific names, key points

Horse/deer fly Tabanus spp. vicious biters, only females bite, strong fliers, daytime feeders dmg = anticoagulant into wound → blood to ooze up to 8 hr (2nd invasion) EIA Life cycle varies 70 d - 2 yr Do not enter dark buildings
Stable fly/house biting fly Stomoxys calcitrans Both sexes vicious biters, daytime Adults can fly up to 90 mi from site Only visit animal to feed, 80% time off animal Requires several blood meals before eggs can be laid (3 min) Prefers legs, fly near ground from wind HABRONEMA
No-see-ums Biting midges Only females feed on blood Phlebotomus flies Dmg = allergic dermatitis w/possible lesion formation. blue tongue virus or african horse sickness
Horn fly Haematobia irritans attack horse pastured near cattle only develop in cow manure mating takes place on host Ivomec kills larvae in manure
House fly Musca domestica do not bite/feed off blood found inside stables, breed in manure Dmg = mechanical vectors, annoyance, HABRONEMA, PINK EYE, BOVINE MASTITIS Manure removed more often in summer
Blow fly/screw worms Cochliomyia hominivorax Larvae develop feeding on dead/living tissue sterilized male flies
Biting louse Bovicola equi
Sucking louse Haenatppinus asini only live 2-3 d off of host
Tail and Hock mange Chorioptes equi patchy areas of rough skin, scabby at edges feet and lower hind legs. Live on host entire life, feed of skin, do not burrow. high temps kill mites
Scale and wet mange Psoroptes equi Rare. suck lymph fluid, found on edge of ooze, can survive off hose 2-3 wk, prefer thick hair during winter horses will scratch Tmt = organophosphate
Dry mange or itch mange Sarcoptes scabiei ZOONOTIC burrow female dies after mating, males die after mating secrete irritating toxin rub and scratch
Created by: 1382306439



Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards