[The species composition of fleas (Siphonaptera) from northwestern Russia].
The check-list of fleas of the northwest of Russia, includes 56 species. Among them, 40 species have been actually recorded in the region in question, while the occurrence of rest 16 species is suggested according to their distribution in adjacent areas. The fleas of the northwest Russia belong to 7 families. All flea species of the region in question including recorded and suggested species are distributed among these families as follows: Pulicidae--5 species, Vermipsillidae--3, Ceratophyllidae--23, Leptopsyllidae--5, Ctenophthalmidae--11, Hystrichopsillidae--1, Ischnopsillidae--8.
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D000818:Animals; D000835:Animals, Wild / Q000469:parasitology; D017753:Ecosystem; D012426:Russia; D005423:Siphonaptera / Q000145:classification*