CLASS INSECTA- Order Diptera (Family Culicidae)

Question 1

Order Diptera

Answer 1

• well-developed anterior wings; haltere with hollow tubes calles veins
• complete metamorphosis

Question 2

Family Culicidae

Answer 2

• mouthparts form the long, slender proboscis
• only female are blood sucking; males subsist on juices of flowers and fruits

Question 3

Feeding period of mosquitoes

Answer 3

✓ Nocturnal- active at night time
e.g CULEX
✓ Diurnal- active at day time
e.g AEDES
✓ Crepuscular- active at twilight
e.g ANOPHELES

Question 4

Pathogenic effects of mosquitoes

Answer 4

• annoyance and blood loss
• decreased milk and meat production
• serve as intermediate host of:
  WUCHERARIA BANCROFTI
• definitive host of malaria parasite
• mechanical carrier

Question 5

Pathogenic effects of mosquitoes serve as intermediate host of?

Answer 5

✓ Wucheraria bancrofti
✓ Difofilaria immitis

Question 6

Definitive host of malaria parasite (Plasmodia)

Answer 6

• Plasmodium juxtanucleare and P. gallinaceum (Culex, Aedes)
• P. malariae, P. ovale, P. falciparum, P. vivax (Anopheles)
• Simian malaria (Aedes)

Question 7

Pathogenic effects of mosquitoes including of mechanical carrier of?

Answer 7

✓ fowl pox- culex aedes
✓ viral encephalitis- culex pipiens
✓ yellow fever- aedes aegypti
✓ H-fever- aedes aegypti
✓ dengue- aedes aegypti
✓ tularemia- anopheles, aedes
✓ fowl cholera- culex

Question 8

fowl pox

Answer 8

culex, aedes

Question 9

viral encephalitis

Answer 9

culex pipiens

Question 10

yellow fever

Answer 10

aedes aegypti

Question 11

H- fever

Answer 11

aedes aegypti

Question 12

Dengue

Answer 12

Aedes aegypti

Question 13

Tularemia

Answer 13

Anopheles, Aedes

Question 14

Fowl cholera

Answer 14

culex

Question 15

Control of mosquitoes

Answer 15

✓ physical means
✓ chemical meana
✓ biological means
- predators of larva/pupa
- bacteria and protozoan parasites
- sterile male technique