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Parasitology - Ectoparasites > Diptera - intro, Stomoxys Calcitrans, Hydrotea Irritans, Musca Autmunalis and Tabanids > Flashcards

Diptera - intro, Stomoxys Calcitrans, Hydrotea Irritans, Musca Autmunalis and Tabanids Flashcards

1
Q

What type of pathogen transmission do diptera use to transmit pathogens?

A

Mechanical pathogen transmission

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2
Q

What do muscids (in muscidae family) feed on?

A

Secretions

Some suck blood (other families are all blood sucking)

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3
Q

Give an example of a biting muscidae

A

Stomoxys calcitrans

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4
Q

Give examples of a non-biting muscidae

A

Hydrotea irritans
Musca autumnal
Musca domestica

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5
Q

Which diptera is known as the stable fly? Which animals does it affect?

A

Stomoxys Calcitrans

Mainly horses and cattle

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6
Q

What does stomoxys calcitrans feed on?

A

Blood

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7
Q

Where do stomoxys calcitrans rest, breed and lay eggs?

A

Rest on warm, unexposed surfaces
Breed inside barns/stables
Eggs laid in dung/straw/urine

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8
Q

How often is a new generation of stomoxys calcitrans?

A

Every 2-3 weeks

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9
Q

Where do stomoxys calcitrans prefer to feed? What do they cause?

A

Lower parts of animal (legs, flank)

Stamping feet, shivering skin, rapid head turn, tail swishing, gadding (restlessness/excitemnt)

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10
Q

How can stomoxys calcitrans be identified?

A

Long, thin proboscis

For blood sucking

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11
Q

Stomoxys calcitrans are vectors for which diseases?

A

Equine infectious anaemia

Trypanosomes (not UK)

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12
Q

What is known as the head fly? Which species is it mainly a problem in?

A

Hydrotea irritans

Most notorious pest, but not dramatic

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13
Q

Is hydrotea irritans biting or non-biting? What do they feed on? What type of mouthpart do they have?

A

Non-biting
Secretions
Sponging/rasping mouthparts

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14
Q

What species does hydrotea irritans pester?

A 
Cattle (main)
Sheep 
Horses
Man 
Rabbits 
Deer
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15
Q

Where are hydrotea irritans often found in cattle? What can they cause?

A

Udder

Mastitis

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16
Q

What is an animals response to hydrotea irritans?

A

Rapid head turn

Tail swishing

17
Q

Is hydrotea irritans exophilic or endophilic? What pasture is it found in? Where are eggs laid?

A

Exophilic
Wooded pasture
Eggs laid on pasture soil

18
Q

How many generations of flies are there each year fo hydrotea irritans? When are they most active?

A

One - in Summer

Warm humid days, late Summer

19
Q

What are distinguishing features of hydrotea irritans?

A

Orange wing base
Green abdomen
Sponging/rasping mouthparts

20
Q

What is known as the face fly? Which species does it affect?

A

Musca autmunalis

Nuisance in cattle, significant in hores

21
Q

Where is musca autumnalis found?

A

Eyes
Muzzle
Face

22
Q

Is musca autumnales endophilic or exophilic? Where do they lay eggs and develop?

A

Exophilic

Eggs in dung on pasture

23
Q

What are distnguishing features of musca autmunalis?

A

No proboscis

Sponging mouthparts

24
Q

When do populations of musca autumnalis build up?

A

Late Autumn

25
Q

What diseases do Musca autumnalis spread?

A

Infectious bovine keratoconjuntivits (pink eye - caused by Moraxella bovid)
Eye problems in horses
Vector of eye and stomach worms

26
Q

What species of fly is similar to Musca autumnalis? What is the difference between these?

A

Musca domestica

Is found inside accommodation, mainly a problem for housed pigs

27
Q

Which flies are biting, non-muscidaes?

A

Tabanids

28
Q

What are the 2 genera of Tabanids in the UK? How can you tell the difference between them?

A

Haematopota - mottled wings

Tabanus - large clear winga

29
Q

What are the distinguishing features of Tabanids?

A 
Bulging iridescent eyes
Large body
Large head
Stubby mouthparts
Mottled wings (Haematopota)
Large clear wings (Tabanus)
30
Q

What mouthparts do Tabanids have? How often do they feed?

A

Biting - stubby
Blood pool feeders
Several small meals often

31
Q

Where do Tabanids breed?

A

Wet pasture (marsh land, pond edges)

32
Q

When do Tabanids emerge? How many generations are there per year? When are they active? (Clue - same as hydrotea irritans)

A

Late Summer july/aug
One generation per year
Active on sunny days

33
Q

What do tabards cause? What are they mechanical vectors of?

A

Gadding

Equine infectious anaemia, trypanosomes, bovine anaplasmosis

Parasitology - Ectoparasites (14 decks)

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