F. imparis sp. n. (40–46) and F. macrochaetosa (47–49) 46 End of abdomen, lateral view 41 Furca, lateral view (unpaired setae marked with grey) 42 Anterior side of dens 43–45 Chaetotaxy of anterior side of furca, variations 46Ant.III 47 End of abdomen 48 Furca, anterior view 49 Dens, posterior view. Notation of setae of posterior and lateral sides of manubrium: ap, M1, ml1, L1, l1, l2; LB–latero-basal setae, C–setae of central area.

  Part of: Potapov M, Hasegawa M, Kuznetsova N, Babenko A, Kuprin A (2018) Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ‘inoculata’ group. ZooKeys 750: 1-40. https://doi.org/10.3897/zookeys.750.22764