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Flashcards in Arthropod 3 Deck (47):
1

The stable fly:

What is the genus and species?

Stomoxys calcitrans

2

What is a distinguishing feature of Stomoxys calcitrans?

4 longitudinal dark stripes on the thorax and 3-4 dark spots on the abdomen

A image thumb
3

Which fly has BOTH sexes feeding on blood?

Stomoxys calcitrans (the stable fly)

4

Where on the body does Stomoxys calcitrans bite?

On the belly & legs

5

Is the stable fly a strong or weak flyer?

Strong

6

Stable flies will lay eggs and larva will feed in moist, decaying vegetable debris including manure.  Does their life cycle require manure?

NO

7

  1. For what are Stomoxys calcitrans mechanical vectors for?
  2. For what are Stomoxys calcitrans biological vectors for?

  1. Mechanical vector : Trypanosomes
  2. Biological vectors : Habronema microstoma

8

The horn fly:

What is the genus and species?

Haematobia irritans

9

Is the horn fly a strong or weak flyer?

Weak

10

Haematobia irritans will congregate on the back, withers, and around the head at what hours?

Day AND night

11

Is Haematobia irritans dependent on fresh cow manure?

Yes

12

Haematobia irritans overwinter as what?

Pupae

13

200 flies per animal is considered the economic threshold for which fly species?

Haematobia irritans (the horn fly)

14

Haematobia irritans:

Greater than ___ flies/animal can decrease weight gain 40-90 grams/day.

700

15

  1. For what is Haematobia irritans a vector?
  2. Is it biological or mechanical?

  1. Stephenofilaria
  2. Biological vector

16

Where can the Tse-Tse fly be found geographically?

Africa ONLY

17

What is special about the gestation and parturition of the tse-tse fly?

The female tse-tse fly bears only one larva at a time.  When extruded from the female, the fully developed 3rd stage larva almost immediately borrows into the soil and pupates.

18

The sheep ked:

What is the genus and species?

Melophagus ovinus

19

Which two flies retain their larvae in their abdomens until they are ready to pupate?

Tse-tse fly (Glossina spp.)

Sheep ked (Hippoboscids)

20

What the genus and species associated with the "pupal case"?

Melophagus ovinus 

"The sheep ked"

21

What is the genus and species of the insect that spends its entire life cycle on its host?

Melophagus ovinus

"The sheep ked"

22

For what is Melophagus ovinus a vector?

Trypanosoma malophagium

23

True or False:

  1. Melophagus ovinus is adequately controlled by most insecticides.
  2. For Melophagus ovinus, the larva are unaffected by most treatment.

  1. TRUE
  2. FALSE - pupae are unaffected by most treatments

24

Because the pupae of Melophagus ovinus are unaffected by most treatments, how must you treat to be successful?

Treat twice with 1 month between treatments

Best to treat after shearing

25

The invasion of tissue or organs of host animals by larval flies usually known as maggots or grubs.

Myiasis

26

Which flies undergo cutaneous myiasis?

Screwworms

Blowflies

Flesh flies

Skin bots

27

Which flies undergo internal myiasis?

Nose bots

Stomach bots

Cattle grubs

28

Where do blowflies lay there eggs?

Wounded, infected, or soiled skin of mammals

29

Blowflies:

What are their females, oviparous, oviviparous, viviparous?

Oviparous

30

Which flies are associated with the "strike zone"?

Blowflies

 

31

How many instars are there while blowflies feed on host tissues?

3

32

What are the 3 genera of blowfly?

Calliphora

Lucilia

Phormia

33

The primary screwworm:

What is the genus and species?

Cochliomyia hominivorax

34

True or False:

Cochliomyia hominivorax (the primary screwwrom) is found in the United States.

FALSE

35

True or False:
The primary screwworm is a facultative ectoparasite.

FALSE

The primary screwworm is an obligate ectoparasite.

36

Where does Cochliomyia hominivorax lay its eggs?

Fresh, uninfected wounds of all kinds

37

What allows for the elimination of the primary screwworm?

Traps

&

Sterilization programs

38

The flesh flies:

What is the genus?

39

What are Sarcophaga females, oviparous, viviparous, etc?

Larviparous (lay larva)

40

Sarchophaga:
Falcultative or obligate parasite?

Falcultative

41

With which do the larvae appear in the wound instantaneously?

Sarcophaga

42

Wohlfahrtia:

Falcultative or obligate parasite?

Obligate parasite

43

Wohlfahrtia:
Females are what, viviparous, oviparous, etc?

Larviparous (lay larva)

44

Wohlfahrtia vigil pentrate normal skin of a newborn and grow in a ___ ___.

Hypodermal pocket

45

True or False:
The tough skin of older animals is not susceptible to an infection with Wohlfahrtia vigil.

TRUE

46

  1. What caused this?
  2. What is the cavitation called?

Q image thumb

  1. Wohlfahrtia vigil
  2. Hypodermal pocket

A image thumb
47