Canine/feline lice (year 2)

Question 1

what are the two suborders of lice?

Answer 1

Mallophaga - biting/chewing

Anoplura - sucking

Question 2

what are the biting/chewing lice affecting dogs/cats?

Answer 2

Trichodectes canis

Felicola subrostratus

Question 3

name the sucking louse affecting cats/dogs

Answer 3

linognathus spp.

Question 4

describe the morphology of Trichodectes canis

Answer 4

1-2mm
yellow
dark markings on abdomen
claws for gripping hair

Question 5

what is the lifecycle of Trichodectes canis?

Answer 5

200-300 eggs are laid during their 1 month lifecycle

the nymph hatches from the egg within 1-2 weeks then grows and moults three times

Question 6

does Trichodectes canis have a larval stage?

Answer 6

no

Question 7

what are the clinical signs of Trichodectes canis?

Answer 7

matted coat, pruritis, inflammation, excoriation, alopecia

Question 8

what is transmitted by Trichodectes canis?

Answer 8

tapeworm

Question 9

what animals does Trichodectes canis affect?

Answer 9

puppies and immunocompromised dogs

Question 10

what host is Felicola subrostratus found on?

Answer 10

cats

Question 11

describe the morphology of Felicola subrostratus

Answer 11

triangular pointed head

Question 12

where on cats is Felicola subrostratus found?

Answer 12

pinnae, back and face

Question 13

what are the clinical signs of Felicola subrostratus?

Answer 13

dull coat, scaling, crusting, alopecia

Question 14

what host is Trichodectes canis found on?

Answer 14

dogs