Clarification of the Rhipicephalus sanguineus group (Acari, Ixodoidea, Ixodidae). II. R. sanguineus (Latreille, 1806) and related species

Abstract

In this, our second study on the biosystematics of the Rhipicephalus sanguineus group, we consider an additional five species found in the Afrotropical region, namely R. sanguineus, R. camicasi, R. guilhoni, R. moucheti and R. bergeoni.Cross-breeding experiments have shown that R. sanguineus (Latreille, 1806) sensu stricto is genetically distinct from R. camicasi Morel, Mouchet & Rodhain, 1976. Further cross-breeding trials confirmed that R. camicasi also occurs in Saudi Arabia: a field strain from this country was more productive than a laboratoryreared strain from Egypt. R. sanguineus, which parasitises mainly dogs, probably occurs throughout the Afrotropical region. R. camicasi parasitises both large and small domestic ruminants and is restricted to the arid and semi-arid lowlands of northeastern Africa and the Arabian peninsula. The larva, nymph, male and female of these two last named species are described with the aid of scanning electron micrographs (SEMs).The two western African species, R. guilhoni Vassiliades, 1963 and R. moucheti Morel, 1964, are accepted as valid members of the R. sanguineus group, but we have little material available for critical study. The male and female of R. guilhoni are briefly redescribed with the aid of SEMs.R. bergeoni Morel & Balis, 1976 occurs predominantly on cattle in the wetter highlands and subhighlands of Ethiopia and Sudan. The male and female are briefly described. Current morphological and ecological data suggest that the inclusion of this species in the R. sanguineus group is questionable.

Colonização e lesão em fêmeas ingurgitadas do carrapato Rhipicephalus sanguineus causadas pelo fungo Metarhizium anisopliae

“…[METSCH. (SOROKIN, 1883)], in to the Rhipicephalus sanguineus ticks (LATREILLE, 1806) (LATREILLE, 1806), um carrapato cosmopolita, é provavelmente o ixodídeo de mais ampla distribuição mundial (PEGRAM et al, 1987) e representa a única espécie do gênero Rhipicephalus (ARAGÃO & FONSECA, 1961) no Brasil. Sua descrição tem sido freqüentemente associada à presença do hospedeiro cão (ARAGÃO, 1936;RIBEIRO et al, 1997;LABRUNA & PEREIRA, 2001;SZABÓ et al, 2001), estando adaptado a cães de domicílios em cidade.…”

Brown dog tick Rhipicephalus sanguineus parasitizing the bird Coereba flaveola in the Brazilian cerrado

“…Durante um levantamento sobre ectoparasitos em aves, em uma pequena reserva de cerrado, constatou- The brown dog tick, R. sanguineus, is cosmopolitan and probably the most prevalent of all ixodid species (PEGRAM et al, 1987) and it was introduced in the South American region during colonization (GUGLIELMONE et al, 2006a). In the Neotropical region R. sanguineus is an almost exclusive dog tick although it can occasionally be found on other mammals (ARAGÃO, 1936;EVANS et al, 2000;LABRUNA et al, 2005).…”

Phylogenetic analysis of some hard ticks from India using mitochondrial 16s rDNA

“…Recently, there has been considerable debate about the status of Rhipicephalus sanguineus sensu stricto as it has been considered as a species complex of 17 closely related species [53,54,55], however, there is no consensus [56] and the morphological similarities among ticks belonging to the Rh. (Rh.)…”