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1 July 2014 New Species of Demodex (Acari: Demodecidae) With Data on Parasitism and Occurrence of Other Demodecids of Rattus norvegicus (Rodentia: Muridae)
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Abstract

This article describes the morphological features and occurrence of Demodex ponderosus n. sp. on brown rats, Rattus norvegicus (Berkenhout), in Poland. D. ponderosus n. sp. is a small demodecid, adults average 152 µm in length, and are oval in shape. They were found in the skin of nearly hairless regions, tail and paws, of rats. Adult mites exhibit sexual dimorphism in terms of body size and proportions. The study also compared the features of the new species with those of the four species of Demodex described previously from this host. Demodex spp. were observed in 100% of the rats examined; however, despite high infestation levels, no symptoms of parasitosis were observed in the hosts.

© 2014 Entomological Society of America
Joanna N. Izdebska and Leszek Rolbiecki "New Species of Demodex (Acari: Demodecidae) With Data on Parasitism and Occurrence of Other Demodecids of Rattus norvegicus (Rodentia: Muridae)," Annals of the Entomological Society of America 107(4), 740-747, (1 July 2014). https://doi.org/10.1603/AN13123
Received: 1 August 2013; Accepted: 1 April 2014; Published: 1 July 2014
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