Сontribution to the knowledge of Parabelbella (Acari, Oribatida, Damaeidae): description of two new species from Russia and the U. S. A., redescription of P. inaequipes (Banks, 1947) and a key to known species Author Ermilov, Sergey G. 0000-0002-0913-131X Institute of Environmental and Agricultural Biology (X-BIO), Tyumen State University, Tyumen, Russia. ermilovacari @ yandex. ru; https: // orcid. org / 0000 - 0002 - 0913 - 131 X ermilovacari@yandex.ru Author Ryabinin, Nikolay A. 0000-0002-1694-8766 Institute of Water and Ecological Problems, Far Eastern Branch, Russian Academy of Sciences, Khabarovsk, Russia. nryabinin 46 @ gmail. com; https: // orcid. org / 0000 - 0002 - 1694 - 8766 nryabinin46@gmail.com text Zootaxa 2020 2020-10-13 4860 3 352 374 journal article 8290 10.11646/zootaxa.4860.3.2 a04a207e-141e-424f-bb72-d37cba24a72b 1175-5326 4536320 59EEE472-ADE2-4A25-8749-4AEB19619078 Key to known species of Parabelbella 1. Prodorsobasal tubercle Ba not developed.................................................................. (2) - Prodorsobasal tubercle Ba developed..................................................................... (3) 2. Notogastral setae la and lm with distinct barbs; distance of setae lm–lp clearly longer than that of la–lm and lp–h 3 ; anterior median ventral tubercle developed; body size: 381–415 232–249................................................................................................... Parabelbella pseudoinaequipes sp. nov. Distribution: U.S.A. - Notogastral setae la and lm roughened, without barbs; distance of setae lm–lp little longer than that of la–lm and lp–h 3 ; anterior median ventral tubercle not developed; body size: 381–415 × 232–249............................................................................................... Parabelbella inaequipes ( Banks, 1947 ) . Distribution: U.S.A. 3. Prodorsobasal tubercles Da and Bp developed............................................................. (4) - Prodorsobasal tubercles Da and Bp not developed.......................................................... (5) 4. Prodorsobasal tubercle Dp developed; notogastral seta p 1 very long (longer than the other notogastral setae), flagellate; body size: 500–539 352–392............. Parabelbella flagellata ( Balogh &Mahunka, 1969 ) . Distribution: Neotropical region. - Prodorsobasal tubercle Dp not developed; notogastral seta p 1 comparatively short (not longer than the other notogastral setae), setifrom; body size: 482–521 308–357................... Parabelbella meridiana (Norton, 1979( a )). Distribution: Chile . 5. Propodolateral apophysis not developed................................................................. (6) - Propodolateral apophysis developed.................................................................... (7) 6. All notogastral setae with flagellate tip; notogastral setae c 1 directed anteriad; epimeral tubercles E2a and E2p developed; body size: 566–626 × 339–400........ Parabelbella golosovae (Lyaschev & Tolstikov, 1993) . Distribution: central western Asia. - All notogastral setae without flagellate tip; notogastral setae c 1 directed posterolaterad; epimeral tubercles E2a and E2p not developed; body size: 348–398 × 215–249........... Parabelbella rusfareastensis sp. nov. Distribution: Russian Far East. 7. All notogastral setae with flagellate tip; tectum of podocephalic fossa with long, triangular tooth projecting posterolaterad, reaching propodolateral apophysis; body size: 348–381 × 232–265.................................................... Parabelbella elisabethae ( Bulanova-Zachvatkina, 1967 ) (see also Miko et al . 2011 ). Distribution: Palaearctic region. - All notogastral setae without flagellate tip; tectum of podocephalic fossa not developed........................... (8) 8. Interlamellar seta with flagellate tip; all dorsal notogastral setae smooth; mutual distance between setae c 1 – c 1 shorter than that of c 1 – c 2 ; propodolateral apophysis of medium size, erect; body size: 531–611 × 346–422...................................................... Parabelbella longiseta ( Banks, 1906 ) (see also Norton 1979 b ). Distribution: Nearctic region. - Interlamellar seta without flagellate tip; all dorsal notogastral setae barbed; mutual distance between setae c 1 – c 1 about the same as c 1 – c 2 ; propodolateral apophysis of small, perpendicular; body size: 640 400............................................ Parabelbella crenatosetosa Bulanova-Zachvatkina, 1967 . Distribution: central part of the eastern Palaearctic region.