Ectoparasites on dogs and cats in the city of Manaus, Amazonas, Brazil

Ectoparasites from different neighborhood of Manaus were collected from august 2001 to May 2002. On dogs it was found: Ctenocephalides f. felis (Bouché, 1835) (Siphonaptera, Pulicidae), Heterodoxus spiniger (Enderlein, 1909) (Phthiraptera, Boopidae), Trichodetes canis (De Geer, 1778) (Phthiraptera, Trichodectidae) and Rhipicephalus sanguineus (Latreille,1806) (Acari, Ixodidae). On cats: C. f. felis. The prevalence of ectoparasites was 80.8% to dogs and 72.7% to cats. For the flea C. f. felis was 28.7% to dogs and 72.7% to cats. For the lice H. spiniger was 12.3% for dogs. For the lice T. canis was 0.1% for dogs and for the tick R. sanguineus was 63% for dogs. The infestation index for fleas was 1.26 to dogs and 1.27 to cats. The sexual ratio obtained was 1.96:1 to dogs and 3.66:1 to cats. The flea C. canis (Curtis, 1826) registered in 1922 was not found.