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Revista Brasileira de Parasitologia Veterinária

On-line version ISSN 1984-2961


LINARDI, Pedro Marcos  and  SANTOS, Juliana Lúcia Costa. Ctenocephalides felis felis vs. Ctenocephalides canis (Siphonaptera: Pulicidae): some issues in correctly identify these species. Rev. Bras. Parasitol. Vet. [online]. 2012, vol.21, n.4, pp.345-354. ISSN 1984-2961.

Ctenocephalides felis felis is one of the most important ectoparasites of dogs and cats throughout the world, because of its geographical distribution, dual parasitological action as an infesting agent and a vector of diseases, the economic losses and the acquired resistance against common insecticides. In Brazil, it surpasses Ctenocephalides canis in distribution, number of host species infested, prevalence and epidemiological importance. However, in some studies the species have been misidentified on the basis of their morphological characters included in taxonomic keys. The morphological variations of chaetotaxy, especially those on the dorsal margin of the hind tibia and lateral metanotal area (LMA), found in certain specimens, have sometimes been erroneously treated as hybrids, in spite of the nonexistence of the two species of Ctenocephalides in the same municipality or region. This review focuses on the characteristics used for interspecific diagnosis and intraspecific variations found between the species. Data on distribution, hosts, prevalence and parasitological action are also presented as an auxiliary means for recognizing the species.

Keywords : Ctenocephalides felis felis; Ctenocephalides canis; Siphonaptera; fleas; taxonomy; morphological variation.

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