Cheyletiella species

Dogs and cats each have their own species of the mite Cheyletiella, which appear to be host-specific — C. yasguri in dogs and C. blakei in cats.

Ctenocephalides (felis) felis (cat flea) Ctenocephalides (felis) canis (dog flea)

Fleas of the genus Ctenocephalides occur on dogs and cats around the world.

Cuterebra species — rabbit bot

Adults of the dipteran (fly) genus Cuterebra are free-living. Larvae are found under the skin of various hosts, generally rodents but occasionally dogs and cats.

Demodex canis

Demodex mites are common in the hair follicles and sometimes sebaceous glands of the skin of dogs around the world.

Dermacentor andersoni -- horses

Dermacentor andersoni is a large reddish-brown to gray-brown tick. In Canada, it is found from central Saskatchewan and west through Alberta and into British Columbia.

Dermacentor variabilis: American dog tick

Dermacentor variabalis is a large reddish-brown to gray-brown tick. In Canada, D. variabilis is found from eastern Saskatchewan and east through to Nova Scotia, primarily in the so...

Eutrombicula species

Trombiculid mites are free-living but their larval stages can infest a range of mammals, birds and people, causing sometimes severe skin lesions characterised by intense pruritus.

Ixodes species

Ixodes spp. ticks are a genus of hard ticks found worldwide. In North America, the primary species of veterinary and public health importance are I. scapularis (in southern Manito...

Lice Dogs and Cats: chewing (Mallophaga), and sucking (Anoplura)

Lice occur on dogs and cats around the world. In Canada dogs are hosts to both sucking and chewing lice (Linognathus setosus and Trichodectes canis, respectively), and cats only t...

Mites: miscellaneous

A description of a few mites that are found occasionally on dogs and cats.


Myiasis is the infestation of living vertebrates with the larvae of flies, the species of which vary with location around the world.

Otodectes cynotis

The ear mite Otodectes cynotis infects dogs and cats and several free-ranging carnivores around the world.

Rhipicephalus sanguineus: brown dog tick

Rhipicephalus sanguineus, the brown dog tick, is a medium sized (unfed adult females are 4-5 mm long) yellowish-brown to reddish-brown tick with a dark inornate brown scutum.

Sarcoptes species — sarcoptic mange or scabies

Adult mites of the genus Sarcoptes live in the stratum corneum of the skin of dogs.

Tick-borne pathogens

Relative to the United States and many other countries, the burden of tick-borne pathogens that can infect pets and people is thought to be relatively low in Canada.