5 (2) vet entomology

Question 1

What is the family name for biting midges?

Answer 1

Ceratopogonidae

Biting midges are also known as no-see-ums

Question 2

What suborder do Ceratopogonidae belong to?

Answer 2

Nematocera

Question 3

What are the typical habitats of Ceratopogonidae?

Answer 3

Tropics to arctic tundra

Question 4

List three characteristics of Ceratopogonidae.

Answer 4

• Very small (<3mm)
• Narrow wings; clear or spotted
• Long, many-segmented antennae

Question 5

What type of mouthparts do Ceratopogonidae possess?

Answer 5

Short, pool-feeders

Question 6

How many genera in the Ceratopogonidae family are known to be blood-feeding?

Answer 6

4

Question 7

Which genus of Ceratopogonidae is most important as a vector?

Answer 7

Culicoides spp.

Question 8

Where do Ceratopogonidae larvae typically develop?

Answer 8

Wet or moist conditions

Question 9

What do the larvae of Ceratopogonidae feed on?

Answer 9

Microorganisms in habitat

Question 10

Name two types of habitats where Ceratopogonidae larvae can be found.

Answer 10

• Rotting vegetation
• Marshes

Question 11

What do female Ceratopogonidae feed on?

Answer 11

Blood

Question 12

How long do adult Ceratopogonidae typically live?

Answer 12

Only a few weeks

Question 13

What is the significance of wingbeat frequency in Ceratopogonidae mating swarms?

Answer 13

Males recognize same-species females

Question 14

What is the host specificity of Ceratopogonidae?

Answer 14

Generalists to host-specific

Question 15

What are the activity patterns of Ceratopogonidae?

Answer 15

• Day-time feeders
• Crepuscular
• Nocturnal

Question 16

True or False: Females of Ceratopogonidae may travel several kilometers in search of mates and hosts.

Answer 16

True

Question 17

What is a common annoyance caused by Culicoides spp.?

Answer 17

Blood-feeding

Question 18

What disease can Culicoides spp. transmit to wild cervids and livestock?

Answer 18

Blue-tongue virus and epizootic hemorrhagic disease

Question 19

What are some signs of disease in cattle due to Culicoides spp.?

Answer 19

• Drooling
• Mouth ulcers
• Lameness
• Hemorrhaging

Question 20

What are the symptoms of African Horse Sickness Virus in horses?

Answer 20

• Pulmonary form: fever, congestion, cough
• Cardiac form: fever, congestion, edema

Question 21

Which animal is considered the primary reservoir for African Horse Sickness Virus?

Answer 21

Zebras

Question 22

What is Onchocerca cervicalis associated with?

Answer 22

Equine onchocerciasis

Question 23

What are some control methods for Ceratopogonidae?

Answer 23

• Habitat modification
• Individual protection
• Chemical control

Question 24

What family do black flies belong to?

Answer 24

Simuliidae

Question 25

What is the appearance of adult Simuliidae?

Answer 25

Hump-backed with grey or black bodies

Question 26

In what type of water do Simuliidae larvae develop?

Answer 26

Flowing water of rivers and streams

Question 27

What is Leucocytozoonosis?

Answer 27

A protozoal disease transmitted by black flies

Question 28

What are some symptoms of vesicular stomatitis in livestock?

Answer 28

* Massive feeding * Death of domestic livestock * Exsanguination

Question 29

What is the causative agent of canine onchocerciasis?

Answer 29

Onchocerca lupi

Question 30

What method is used for controlling Simuliidae larvae?

Answer 30

Chemical treatment of larval development sites

Question 31

Fill in the blank: The larvae of Simuliidae attach themselves to underwater _______.

Answer 31

substrates

Question 32

True or False: Dogs are often symptomatic when infected with Onchocerca lupi.

Answer 32

False