Arrhopalitidae, Stach, 1956

Antipova, M. D. & Babenko, A. B., 2022, An annotated checklist of the springtails (Hexapoda: Collembola) recorded from the foothill and mountain parts of the Republic of North Ossetia-Alania, North Caucasus, Russia, Russian Entomological Journal 31 (4), pp. 331-345 : 341

Family Arrhopalitidae

Pygmarrhopalites cochlearifer (Gisin, 1947) . A Europe- an species recorded from pine forests around Verkhniy Tsey and Nar [ Kuznetsova et al., 2019].

P. pygmaeus (Wankel, 1860) . A Holarctic species recorded from the forests of Tsey and Kassar gorges in the nature reserve [ Kuchiev, 2006].

P. principalis (Stach, 1945) . A Holarctic species common in boreal regions, but also recorded from the mountains, including the Caucasus and Transcaucasia [ Grinbergs, 1960; Kuchiev, 2006; Scherbina, 2020]. In our material from the Tsey Gorge, only one specimen has been found in a young birch-willow forest (2233 m a.s.l.).

P. secundarius (Gisin, 1958) . A Palaearctic species. One of the most abundant species in pine forests near the village of Nar [ Kuznetsova et al., 2019].