Flies

Question 1

Cow dorsum

Answer 1

Warbles
“Cow grubs”

*Hypoderma bovis (spinal cord migration)
*Hypoderma lineatum (esophageal migration

*Cows&raquo_space; Horses
*Warbles = L3 larvae

*Tx = avermectins

Question 2

Fly in Africa only. Carries African sleeping sickness from Trypanosomes (“Nagana”)

Answer 2

Tse Tse fly

Glossinia

Question 3

Genus of Sandfly in New World

Answer 3

Lutzomyia

Question 4

Genus of Sandfly in Old World

Answer 4

Phlebotomus

Question 5

Sandfly is the vector for ______

Answer 5

Leishmania

Question 6

Where do sandflies (Lutzomyia, phlebotomus) reproduce

Answer 6

Decaying organic matter

NOT H2O

Question 7

What type of infection is Myiasis

Answer 7

Fly larvae disease (bots)

Question 8

Horse bot

Answer 8

Gasterophilus

Question 9

Sheep bot

Answer 9

Oestrus ovis
“Sheep nose”

Question 10

Rodent/rabbit bot

Answer 10

Cuterebra

Hypersensitivity reaction to L3 possible!

Question 11

Screwworm myiasis

Answer 11

REPORTABLE
*Cochliomyia hominovorax

Likes living tissues

Question 12

Sheep

Answer 12

Melophagus ovinus

Sheep ked

Entire life ON HOST
*Affects wool

Question 13

Sheep ked is the vector for _____

Answer 13

Trypanosoma melophagium

Question 14

Horse

Answer 14

Hippobosca

Horse ked

Likes inguinum, perianal region

Question 15

Cow Ventral abdomen

Answer 15

Stephanofilaria stilesi

Filaria

Vector: Haematobia irritans
“Horn fly”

Question 16

What disease does Haematobia irritans (horn fly) carry

Answer 16

Stephanofilaria stilesi

(filaria; ventral midline, cow)

ALSO Corynebacterium pseudotuberculosis

Question 17

Where do horn flies lay their eggs

Answer 17

Cow manure

Haematobia irritans

Question 18

Which fly carries Corynebacterium pseudotuberculosis

Answer 18

Haematobia irritans (horn fly)

Question 19

What time do horn flies feed

Answer 19

Day time

Haematobia irritans

Question 20

Stable fly

Answer 20

Stomoxys

Question 21

What is unique about stable flies

Answer 21

Both males and females blood feed

(other flies, just females!)

Question 22

What disease is this? Vector?

Answer 22

Habronemiasis
“Summer sores”

Vector: Stable fly (Stomoxys) and House fly (Habronema Muscae)

Question 23

Which flies are responsible for these lesions? What disease is this?

Answer 23

Equine aural plaques

Caused by equine papillomavirus

Vectors: 1) Black fly, Simulium
2) Stable fly, Stomoxys

Question 24

What time do stable flies feed?

Answer 24

Daytime

Question 25

Which flies feed at daytime?

Answer 25

*Stable fly (Stomoxys) *Horse fly (Tabanus) *Horn fly (Haematobia irritans)

Question 26

Which fly is a vector for Equine Infectious Anemia (EIA)?

Answer 26

Stable fly (Stomoxys)

Question 27

T or F: Stable fly (Stomoxys) can be a vector for Trypanosomes

Answer 27

True. (So can Tse Tse fly)

Question 28

Tabanus other name

Answer 28

Horse fly Large, piercing mouthparts

Question 29

Where do horse flies breed

Answer 29

STANDING water (black flies like running water), wet vegetarian

Question 30

T or F: Tabanus control can be achieved with adding fans to the stable

Answer 30

False. Strong fliers. Fans don't help enough.

Question 31

Tabanus (horse flies) are a vector for ______ (4)

Answer 31

*Tularemia *Anthrax *Anaplasma *Bovine leukoemia virus

Question 32

T or F: Culicoides control can be achieved with adding fans to the stable

Answer 32

True. Weak fliers

Question 33

Other name for Culicoides

Answer 33

Gnats No see Ums

Question 34

What disease is this? Which fly is a vector for this disease

Answer 34

Onchocerca cervicalis Culicoides, Black fly (Simulium)

Question 35

Which flies may bite on the ventral midline in horses

Answer 35

*Cuilocoides *Haematobia irritans (horn fly; umbilical, Stephanofilaria stilesi) *Stomoxys (Stable fly) *Tabanas (horse fly)

Question 36

Which fly is a vector for blue tongue, African Horse Sickness

Answer 36

Culicoides

Question 37

Which species of Culicoides bites on the ventrum

Answer 37

C obsoletus C nuberculosis C schultze

Question 38

Which species of Culicoides bites on the dorsum

Answer 38

C imicola C newsteadii C pulicaris

Question 39

Which flies are associated with summer itch (3)

Answer 39

Culicoides > horn fly (Haematobia irritans, ventrum), black fly (Simulium, diffuse)

Question 40

Which breed is predisposed to summer itch

Answer 40

Icelandic ponies

Question 41

Other name for summer itch

Answer 41

Insect Bite Hypersensitivity

Question 42

Type of hypersensitivity reaction caused by Summer Itch

Answer 42

Type 1, Type 4

Question 43

Where do Mosquitos breed? What time do mosquitos feed

Answer 43

Water, dusk

Question 44

Other name for Black fly

Answer 44

Simulium

Question 45

Where do Simulium breed

Answer 45

RUNNING water (horse flies like standing water)

Question 46

What time do Simulium feed

Answer 46

Morning + evening

Question 47

Simulium is a vector for _____

Answer 47

*EHV aural plaques *Onchocerca *EEE

Question 48

What is the other name for Face Fly

Answer 48

Musca autumnalis

Question 49

Where do Musca autumnalis breed

Answer 49

Feces, garbage

Question 50

Musca autumnalis is a vector for _____

Answer 50

Bovine papilloma virus, Thelezia

Question 51

Other name for House Fly

Answer 51

Musca domestica

Question 52

Where do Musca domestica breed

Answer 52

Feces, garbage

Question 53

Musca domestica is a vector for ______

Answer 53

1) Habronema muscae (stomach nematode in horses) 2) Draschia megastoma (stomach nematode in horses) 3) Corynebacterium

Question 54

T or F: Fans will be very helpful for minimizing Simulium exposure

Answer 54

FALSE. Strong fliers, can fly long distances

Question 55

Where on the body does Simulium bite

Answer 55

Thinly haired areas -Face, ears, neck -Ventrum -Intermandibular space -Legs

Question 56

Treatment for Simulium

Answer 56

Stable during day Frequent application of repellents Prednisolone if severe cutaneous reactions

Question 57

Treatment of Tabanus (horse fly)

Answer 57

Fly sheets (protect truncal feeding) Stable during the day Frequent application of repellents

Question 58

Where on the body do Horse Flies bite

Answer 58

Ventrum, legs, neck, withers When they stop feeding, blood drops appear at the site. Attracts non-biting insects

Question 59

Where on the body do Stable Flies bite

Answer 59

Caudal, lateral aspects of front and hindlimbs CHEST + LEGS

Question 60

How much time do horn flies spend on their host?

Answer 60

Their ENTIRE adult life

Question 61

T or F: Hamaetobia irritans requires COW manure for eggs to develop. Eggs laid in horse manure will not develop

Answer 61

True

Question 62

Where on the body do horn flies bite

Answer 62

Umbilicus! VENTRAL MIDLINE DERMATITIS

Question 63

Treatment of Horn flies

Answer 63

Remove cow feces!! +Daily repellent spray

Question 64

T or F: Musca are biting flies

Answer 64

False. Feed from wounds or ocular/oral/nasal secretions

Question 65

Where to horse keds like to feed

Answer 65

Rump, perineum

Question 66

Which mosquito genus are strong fliers? Which are weak fliers?

Answer 66

Strong: Aedes Weak: Anopheles/Culex

Question 67

Differentiating factor for ventral midline dermatitis between Culicoides and Horn flies

Answer 67

Horn flies: discrete lesions Culicoides: More generalized dermatitis