Lagochilascariasis, a parasitic disease little known in Brazil, is caused by an ascarid nematode that has a peculiar life cycle, with a predilection site for the cervical region in the final hosts: humans, cats and dogs. We aimed to record the occurrence of Lagochilascaris minor in domestic cats from rural areas in the Municipality of Pelotas, Rio Grande do Sul State, Brazil, with reports of clinical signs and the treatment applied.
ABSTRACT. Tadarida brasiliensis (Geoffroy, 1824), the Brazilian free-tailed bat, is an insectivorous bat that occurs from southern United States of America to southern South America. In this study we present the first data on diversity of ectoparasitic mites of T. brasiliensis in Brazil. A compilation and analysis of the studies of mite diversity conducted in different points the geographic distribution this bat species are provided. The mites were collected from March 2010 to November 2011 on 160 T. brasiliensis adult bats captured in southern Brazil. Four species of mites have been found: Chiroptonyssus robustipes (Ewing, 1925), Ewingana longa (Ewing, 1938), Ewingana inaequalis (Radford, 1948), and specimens of Cheyletidae. Chiroptonyssus robustipes was the most prevalent species (100%), followed by E. longa (20%), E. inaequalis (10%), and specimens of Cheyletidae (1.25%). The data currently available show that C. robustipes parasitizes T. brasiliensis throughout its region of occurrence, and this mite is highly prevalent and abundant. The two species of Ewingana accompany the geographical distribution of T. brasiliensis, but with much lower prevalence and abundance. KEYWORDS.Brazilian free-tailed bat, Acari, Macronyssidae, Myobiidae, Cheyletidae. RESUMO.Variação geográfica na diversidade de ácaros ectoparasitos em Tadarida brasiliensis (Chiroptera, Molossidae). Tadarida brasiliensis (Geoffroy, 1824) é um morcego insetívoro que ocorre desde o sul dos Estados Unidos até o sul da América do Sul. Neste estudo são apresentados os primeiros dados sobre diversidade de ácaros ectoparasitos de T. brasiliensis no Brasil e é disponibilizada uma compilação e análise dos estudos de diversidade de ácaros realizados nos diferentes pontos da distribuição geográfica desta espécie de morcego. Os ácaros foram coletados de 160 espécimes adultos de T. brasiliensis capturados no extremo sul do Brasil, entre março de 2010 e novembro de 2011. Quatro espécies de ácaros foram coletadas: Chiroptonyssus robustipes (Ewing, 1925), Ewingana longa (Ewing, 1938), Ewingana inaequalis (Radford, 1948) e espécimes de Cheyletidae. Chiroptonyssus robustipes foi a espécie mais prevalente (100%), seguido de E. longa (20%), E. inaequalis (10%) e exemplares de Cheyletidae (1,25%). Os dados disponíveis atualmente demonstram que C. robustipes parasita T. brasiliensis em toda sua região de ocorrência e que este ácaro é altamente prevalente e abundante. As duas espécies de Ewingana acompanham a distribuição geográfica de T. brasiliensis, porém com prevalências e abundâncias muito menores. PALAVRAS-CHAVE.Morcego brasileiro da cauda livre, Acari, Macronyssidae, Myobiidae, Cheyletidae.
During the period 2010-2012, eighty individuals of Calidris fuscicollis (Vieillot, 1819) were collected on the southern coast of Rio Grande do Sul, Brazil, with the objective of determining the presence of feather mites. Of the 80 birds examined, 32.5% were infested by mites, identified as Avenzoaria calidridis (Oudemans, 1904) Palavras-chave: ácaros plumícolas, Avenzoariidae, Pterolichidae, Alloptidae, maçarico-de-sobre-branco.
ABSTRACT:Ticks are important bloodsucking ectoparasites for public and animal health for transmitting infectious agents during blood feeding and causing injuries to their hosts. The authors report the occurrence of Amblyomma ovale and Amblyomma fuscum for the first time in Brazil, parasitizing the nine-banded armadillo (Dasypus novemcinctus). KEYWORDS: Ixodidae, Amblyomma ovale, Amblyomma fuscum,Dasypus novemcinctus, nine-banded armadillo, Brazil. RESUMO:Carrapatos são ectoparasitos hematófagos importantes para a saúde pública e animal por transmitirem agentes infecciosos durante a hematofagia, bem como causarem injúrias a seus hospedeiros. A ocorrência dos carrapatos Amblyomma ovale e Amblyomma fuscum é registrada, pela primeira vez, para o Brasil, parasitando tatu-galinha (Dasypus novemcinctus).
Dasypus novemcinctus, Linnaeus, 1758 (Dasypodidae) occurs from Southern United States to South America (Reis et al. 2006). They have fossorial terrestrial habits, and the majority of the species construct burrow and excavate the soil to obtain food (Carter & Encarnação 1983). They are essentially solitary except during the brief mating period. Many armadillos of this species are run over and killed on highways (Fischer 1997) and they are also extensively hunted, but they are not listed as endangered due to their large distribution.
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