Agradecimentos: To the veterinarians Gustavo and Adriano Bauer, owners of the clinical center where the animal was attended; and to Matheus Alves Moreira and Danaê Avanze Cação for bringing the mites to confirm the identification. To Dr. Gregory Evans, APHIS-PPQ, USDA for the revision of the manuscript and his recommendations. The Smithsonian Natural History Museum and National Agricultural Library (NAL-USDA), SEL-USDA for support and assistance with specimens and references. This work was supported by the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq no. 454907/2014-1 and 440639/2015-8 to DMB-B, 377976/2014-8 to FCJ), Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP no. 2010/51875-9 to DMB-B and 2017/01416-7 and 2018/24667-8 to RB-S). This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) - Finance Code 001. Mention of trade names or commercial products in this publication is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the USDA; USDA is an equal opportunity provider and employer Ver menos

Abstract: The cheyletid mites that parasitize mammals have been neglected for a long time in Brazil, although they can be common on pets and cause injury to their hosts. Recently, Cheyletiella parasitivorax was found parasitizing a rabbit in Brazil which represents a new host and distribution record for the mite species. An illustrated dichotomous key for the identification of the species in this genus and data from the literature are provided Ver menos

Resumo: Os ácaros da família Cheyletidae que parasitam mamíferos são negligenciados há muito tempo no Brasil, embora eles sejam comuns em animais domésticos. Considerando as dificuldades morfológicas para diagnosticar as espécies dessa família que infestam mamíferos, este estudo refere-se a uma nova ocorrência de Cheyletiella parasitivorax incluindo os poucos registros de literatura. Além disso, também está sendo apresentada uma chave dicotômica ilustrada para identificação de espécies desse gênero Ver menos