Lab 9

Question 1

Which genus does not belong to the grp of mosquitoes?

Answer 1

Alphitoblus.

Question 2

Most of the mosquitoes sp. are?

Answer 2

Nocturnal or crepuscular.

Question 3

Choose the insect grp where development in stagnant water is typical?

Answer 3

Mosquitoes.

Question 4

Some of the mosquitoes sp. are?

Answer 4

Diurnal.

Question 5

The female mosquitoEs need blood for?

Answer 5

Ovarian development.

Question 6

What does the female mouthparts of the mosquitoes have?

Answer 6

Piercing- sucking mouthparts ( fleshy labium), paired maxilla + mandibles, hypopharynx + labrum.

Question 7

Which part of the mosquito is entering the skin?

Answer 7

Labrum.

Question 8

Which part of the mosquito is ø entering the skin?

Answer 8

Fleshy labium.

Question 9

How big is the mosquitoes?

Answer 9

2- 10 mm.

Question 10

What is characteristic for the male mosquitos?

Answer 10

Reduced or absent maxilla.

Question 11

How is the antenna in female mosquitos?

Answer 11

Pilose ( hairy).

Question 12

How is the antenna in male mosquitos?

Answer 12

Plumose ( feathery).

Question 13

How does the Anopheles look like?

Answer 13

Straight, acute angle with the surface.

Question 14

How does Culex, Aedes look like?

Answer 14

Bended at thorax + body is parallel with the surface.

Question 15

How do eggs of mosquitos look like?

Answer 15

Elongated, ovoid or boat shaped.

Question 16

Which mosquitos lay eggs on H2O?

Answer 16

Anopheles.

Question 17

Which mosquitoes lay eggs in grps?

Answer 17

Culex.

Question 18

How many larval instars are there ins till freshwater Anopheles?

Answer 18

4.

Question 19

How do mummy-like pupae look like?

Answer 19

Comma-shaped, distinct cephalothorax + abdomen with respiratory trumpets.

Question 20

Choose the scientific name of a blackfly sp.?

Answer 20

Simulium damnosum.

Question 21

Most of the sp. of Blackflies is?

Answer 21

Diurnal.

Question 22

When is the Blackflies most active?

Answer 22

During the morning/ early evening.

Question 23

How does the female Blackfly suck blood?

Answer 23

Lacerates the tissues until a pool of blood is formed + then takes it up.

Question 24

Which ones are sp. of Blackfly?

Answer 24

Similium columbaschense + S. damnosum.

Question 25

How are the eyes of the female Blackfly?

Answer 25

Distinctly separated ( dichoptic).

Question 26

How are the eyes of the male Blackfly?

Answer 26

Closer ( holoptic).

Question 27

Where are the eggs of the Blackfly laid?

Answer 27

In batches on stones or vegetation near running water.

Question 28

How many larval instars of the Blackfly?

Answer 28

6- 9.

Question 29

What is a clinical sign of Blackfly in cattle?

Answer 29

Acute syndrome: simuliotoxicosis.

Question 30

What is characteristic for both sexes of Sandflies?

Answer 30

Feed on plant juices.

Question 31

How is the colour of the Sandfly?

Answer 31

Dull coloured.

Question 32

How big is the Sandfly?

Answer 32

5 mm.

Question 33

How are the wing veins of the Sandfly?

Answer 33

In straight lines.

Question 34

How are the eggs of the Sandfly laid?

Answer 34

In cracks, burrows or holes in ground.

Question 35

How many larval instars does Sandfly have?

Answer 35

4.

Question 36

Mottled wings is characteristics for?

Answer 36

Biting midges.

Question 37

How big is the biting midges?

Answer 37

1.5- 5mm.

Question 38

How many larval instars do Biting midges have?

Answer 38

4.

Question 39

What are the Muscoid flies called which is associated with man?

Answer 39

Synathropic.

Question 40

What are the Muscoid flies called which is associated with the stables?

Answer 40

Endophilic.

Question 41

What are the Muscoid flies called associated with pastures?

Answer 41

Exophilic.

Question 42

What is in the 1st segment of Muscoid flies?

Answer 42

Inner cephalopharyngeal skeleton.

Question 43

How many larval instars do Muscoid flies have?

Answer 43

3.

Question 44

How is the shape of the puprarium of Muscoid flies?

Answer 44

Barrel shaped.

Question 45

How big is the Musca domestica/ housefly?

Answer 45

7- 8 mm.

Question 46

How many segments do the larvae of the Musca domestica/ housefly have?

Answer 46

12.

Question 47

How many generations/yr does the housefly have?

Answer 47

10 - 30.

Question 48

How big is the Fannia canicularis/ lesser housrfly?

Answer 48

4- 6 mm.

Question 49

How does the 1st 2 abd segments of the Fannia canicularis/ lesser housefly look like?

Answer 49

Yellowish spots.

Question 50

How big is the Stomoxys calcitrans/ stable fly?

Answer 50

6- 7 mm.

Question 51

How does the Stomoxys calcitrans/ stable fly attack their host?

Answer 51

On lower parts ( belly, limbs).

Question 52

How big is Musca autumnalis/ face fly?

Answer 52

5- 7 mm.

Question 53

Which sp. have biological + mechanical vector?

Answer 53

Musca autumnalis or facefly.

Question 54

What does the musca autumnalis feed on?

Answer 54

Secretions around eyes ( nose, mouth + wounds).

Question 55

How big is the Harmatobia irritans/horn fly?

Answer 55

4 mm.

Question 56

What does the horn fly cause?

Answer 56

Intense irritation + blood loss.

Question 57

Where do (a) Lucilla spp (b) Wohlfahrtia spp belong?

Answer 57

(a) Calliphoridae. | (b) Sarcophagidae.

Question 58

Which have a (a) closed peritreme (b) open peritreme?

Answer 58

(a) blowfly. | (b) fleshfly.

Question 59

Which has a 3rd stage larva called (a) maggot (b) warble/grub?

Answer 59

NONE.

Question 60

Which adult female is (a) larviparous (b) honey bee like?

Answer 60

(a) | (b) nasal bot fly.

Question 61

Which belongs to the larvae of (a) O. ovis (b) H.lineatum?

Answer 61

(a) Os ethmoidae. | (b) Oesophagus.