CLASS INSECTA- Order Diptera (Family Ceratopogonidae)

Question 1

Ceratopogonidae- The Midges

Answer 1

• have hairs not scales
• aquatic development
• obtectate pupa
• serve as vectors or viruses, protozoans and nematodes

Question 2

Culicoides

Answer 2

“biting midge”, “punkies”, “no-see-ums”

• 1-3 mm long
• spotted wings
• crepuscular

Question 3

Culicoides- Pathogenic Effects

Answer 3

✓ painful bites
✓ queensland/sweet itch in horses
✓ transmits
✓ biological vectors

Question 4

Culicoides pathogenic effects transmits?

Answer 4

• bluetongue
• african horse sickness
• bovine ephemeral fever
• rift valley fever
• equine encephalosis
• equine allergic dermatitis

Question 5

Intermediate host of;

Answer 5

• Onchocerca reticulate and O. gibsoni in cattle and O. cervicalis in horses
  (Equine Onchoceriasis/fistulous withers)
• Leucocytozoon caulleryi

Question 6

Culicoides- Pathogenic Effects
(Biological Vectors)

Answer 6

✓ Haemosporidians
✓ Haemoproteus
✓ Hepatocystis
✓ Leucocytozoon

Question 7

blood parasites of reptiles, birds and mammals

Answer 7

Haemosporidians

Question 8

Haemoproteus

Answer 8

• Haemoproteus meleagridis (turkeys)- Histomoniasis (blackhead disease)
• Leukocytozoon caulleryi (chickens)