Cuterebra spp

Question 1

Family name

Answer 1

Oestridae

Question 2

describe adults

Answer 2

large hairy flies
non functioning mouthparts
short lived

Question 3

common name

Answer 3

rodent or rabbit bot fly or New World skin bot flies

Question 4

principal hosts

Answer 4

mainly rabbits and rodents. Also could be dogs, cats,

Question 5

zoonosis?

Answer 5

yes, but not common

Question 6

third stage larva

Answer 6

dark, brown and covered with black spines

Question 7

life cycle

Answer 7

female fly lays eggs near rodent or rabbit habitat, first stage larvae hatch and crawl onto the hosts fur, larvae enter the host through the skin, migrates to a subcutaneous site where it develops to a thirds stage larvae in a month, emerge from a hole in the skin and drop into the soil, adults emerge copulate and lay eggs

Question 8

sites of infection

Answer 8

subcutaneous tissue in dogs and cats

can migrate to brain

Question 9

pathogenesis

Answer 9

Fibrotic cyst forms from larva in subcutaneous tissue

Larva in brain of cat can lead to infarction

Question 10

clinical signs

Answer 10

lump in neck or legs
wet fur
hole dripping

Question 11

diagnosis

Answer 11

third stage larva and seasonality

Question 12

why be careful not to squish larvae?

Answer 12

result in severe tissue reaction- type 1 hypersensitivity

Question 13

treatment

Answer 13

several remedies may protect but are not approved

Question 14

larvae

Answer 14

obligate parasites, host specific