Lice occurring on small mammals of Priamurje are represented by six species. Of 6501 insects collected 91.2% fall on H. acanthopus. 99.8% of lice were collected from rodents of which the main hosts are Clethrionomys rufocanus and Microtus fortis. The active reproduction of insects takes place in a warm period. High abundance indices were registered from April to July: abundance indices were from 0.6 to 3.0; occurrence indices--from 10.1 to 24.9%.

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