Exam II - Hypoderma spp.

Question 1

What is the common name for Hypoderma bovis adult?

Answer 1

warble fly

Question 2

What is the common name for Hypoderma bovis larvae?

Answer 2

Northern Cattle grub

Question 3

What is the common name for Hypoderma lineatum adult?

Answer 3

warble fly

Question 4

What is the common name for Hypoderma lineatum larvae?

Answer 4

Common cattle grub

Question 5

How and where do Hypoderma lineatum lay their eggs?

Answer 5

Hypoderma lineatum eggs are laid in lines of 6 or more on the lower limb

Question 6

Describe the appearance of Hypoderma spp adults

Answer 6

resemble bees, but have 1 pair of wings. No functional mouthparts

Question 7

Where do Hypoderma lineatum larvae accumulate?

Answer 7

in submucosa of esophagus

Question 8

Where do Hypoderma bovis larvae accumulate?

Answer 8

epidural fat of spinal cord

Question 9

What is/are the site(s) of infection for Hypoderma spp?

Answer 9

3rd stage larvae found in lumps (warbles) on backs of cattle in spring

Question 10

Describe pathogenesis associated with Hypoderma spp. L₃

Answer 10

3rd stage larvae under skin cause damage and downgrade carcass (economic loss)

Question 11

Describe pathogenesis associated with the death of *Hypoderma lineatum *larvae

Answer 11

bloat

Question 12

Describe pathogenesis associated with the death of Hypoderma bovis larvae

Answer 12

If Hypoderma bovis larvae die in the spinal canal, the release of a highly toxis proteolysin can cause paraplegia.

Question 13

How would you diagnose Hypoderma spp?

Answer 13

ID the larvae or adult

Question 14

Treatment & prevention options for Hypoderma spp?

Answer 14

MCLs kill early stages, but timing is critical