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Kuznetsov N.N., Barilo A.B.
Descriptions are provided for four new species of predatory mites found in the Samar¬kand District (Uzbekistan): Neomolgus raptor sp. n. and Odontoscirus asiaticus sp. n. differ from the closely related species of chaetotaxy of legs; Bdellodes montanus sp. n. differs from B. hurdi Atyeo, 1960 by the presence of evaginations on propodosome and the chaetome of legs and genital valves, the structure of amphioid sclerites; Biscirus vul¬garis sp. n. differs from B. thori Womersley, 1963 by the chaetome of legs and anal- genital field, the structure of amphioid sclerites, the pattern of cutaneous folds on propodosome.
Kuznetsova I.A., Cheprakov M.I.
Experiments were carried out on hybridization of the Lemmus Palearctic representatives. The Eastern subspecies of the Siberian lemming L. sibiricus chrysogaster is an independent species and the authors proposed to restore for it the species name L. chrysogaster Allen, 1903. L. lemmus, L. sibiricus, L. amurensis are very closely related species (a high percentage of fertile males in all variants of crosses). The Lemmus Palearctic representatives form two groups: L. lemmus, L. sibiricus, L. amurensis — Palaearctic species per se, relatively weakly differentiated; L. chrysogaster, closely related to L. trimucronatus, a species of non-Arctic origin penetrated in the Palaearctic relatively recently. It is unlawful to include the North American lemmings in the species L. sibiricus.
SERGIEVSKII S.O., GRANOVICH A.I., MIKHAILOVA N.A.