DAO 118:1-10 (2016)  -  DOI: https://doi.org/10.3354/dao02945

Demodex castoris sp. nov. (Acari: Demodecidae) parasitizing Castor fiber (Rodentia), and other parasitic arthropods associated with Castor spp.

Joanna N. Izdebska*, Sławomira Fryderyk, Leszek Rolbiecki

Department of Invertebrate Zoology and Parasitology, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland
*Corresponding author:

ABSTRACT: A new species of demodecid mite, Demodex castoris sp. nov. (Acari: Prostigmata: Demodecidae), is described based on adult stages from the skin of the nasal region of the Eurasian beaver Castor fiber Linnaeus, 1758, collected in Poland. This is the first detection of a representative demodecid mite in rodents of the suborder Castorimorpha and also represents the first detection of a skin mite in Eurasian beavers. The new species is a small skin mite (average 173 ┬Ám in length) characterized by sexual dimorphism related to body proportions. D. castoris sp. nov. was observed in 4 out of 6 beavers examined (66.6%), with a mean intensity of 10.8 and an intensity range of 2-23 ind. host-1. This paper also contains a checklist of parasitic arthropods known from Castor spp.


KEY WORDS: Demodex castoris sp. nov. · Demodecid mite · Parasites · Eurasian beaver · Castor fiber · Semiaquatic mammal


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Cite this article as: Izdebska JN, Fryderyk S, Rolbiecki L (2016) Demodex castoris sp. nov. (Acari: Demodecidae) parasitizing Castor fiber (Rodentia), and other parasitic arthropods associated with Castor spp.. Dis Aquat Org 118:1-10. https://doi.org/10.3354/dao02945

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