taxonID	type	description	language	source
DBEFA8EE2FA6C791C0F65EA2E5DD05F0.taxon	diagnosis	Diagnosis. Blind. Dorsal macrosetae (Md) present on both Th. II and Th. III. Sensillary formula complete (43 / 22235; 10 / 100). Medial s-setae on body tergites short, set in anterior position. Macrosetae short. Ventral setae on Th. III absent. Anterior side of manubrium normally with 2 + 2 setae, dens with 18 - 22 anterior setae. Mucro bidentate.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
DBEFA8EE2FA6C791C0F65EA2E5DD05F0.taxon	description	Description. Body size from 1.0 (one adult male) to 1.7 mm. Body shape relatively tubular, general appearance not typical of ' inoculata ' group due to short macrosetae (Fig. 12). Without ocelli and pigmentation. Cuticle with fine, hexagonal primary granulation (" smooth "). PAO slender and long, middle constriction varies, ' inner denticles' usually well developed, PAO length 1.8 - 1.9 as long as width of Ant. I and 2.3 - 2.5 as long as inner unguis length (Fig. 14). Labium complete, guard setae e 7 present, three proximal and four basomedian setae. Ventral side of head with 4 + 4 postlabial setae. Ant. I with 13 - 15 common setae, two ventral s-setae (s) and three basal micro s-setae (bms): two dorsal bms (short and long) and one ventral bms. Ant. II with three bms and one latero-distal s, Ant. III with one bms and four distal s (lateral s absent, Fig. 15). Several tubular s-setae on Ant. IV. Organite small. Common setae short. Sensillary formula as 43 / 22235 (s) and 10 / 100 (ms). S-setae short, four s-setae on dorsal side of Abd. V longer. Medial s-setae on Th. II-Abd. III situated in front position, on Abd. I-III between Md and Mdl (Figs 16, 17). Abd. V with five s-setae arranged as three in dorsal position, thin, as long as common setae (as, accp 1, accp 2), one lateral, thicker than dorsal, and one latero-ventral, short (' 3 + 1 + 1 ' pattern) (Fig. 18), accp 3 s-setae subequal to accp 2. Macrosetae smooth and short, 2,2 / 3,3,3 in number, medial ones on Abd. V much shorter than dens (2.3 - 3.1) and 1.8 - 2.3 times longer than mucro (Fig. 18). Axial chaetotaxy as 10 - 12,7 - 8, / 5 - 6,5,5. Thorax without ventral setae. Empodial appendage as long as 0.5 - 0.6 unguis. Tibiotarsi with 24 - 27 setae on legs I-II, and 28 - 32 on leg III. Upper and lower subcoxae of legs I-III with 0,1 / 3,6 - 8 / 5 - 7,7 - 9 setae, respectively. Coxae of leg I with two front setae. Ventral tube with 4 + 4 latero-distal and 5 - 7 posterior setae (two in distal transversal row and 3 - 5 in more proximal position), anteriorly without setae. Tenaculum with 4 + 4 teeth and a seta. Anterior furcal subcoxae with 12 - 15, posterior one with six setae. Anterior side of manubrium normally with 2 + 2 setae at distal edge, arranged in two longitudinal lines (Fig. 19). One additional seta often present on one side in a distance from main group resulting in 2 + 3 set (Fig. 11). One of the paratypes shows 2 + 1 anterior setae on manubrium (Fig. 20). Posterior side of manubrium with 4 + 4 latero-basal, two apical setae (ap), 2 + 2 setae in distal transversal row (M 1, L 1), two pairs of lateral setae, and 5 - 6 + 5 - 6 in central part (Fig. 11). Dens with 18 - 22 anterior setae. Posterior side of dens crenulated and with seven setae: four basal, two at the middle, and one (not especially small) at base of mucro (Fig. 11). Mucro bidentate. Ratio of manubrium: dens: mucro = 4.1 - 4.5: 5.1 - 5.8: 1. Males present.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
DBEFA8EE2FA6C791C0F65EA2E5DD05F0.taxon	distribution	Distribution and ecology. The species is known only from the type locality where it inhabits mountain forests and tundra.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
DBEFA8EE2FA6C791C0F65EA2E5DD05F0.taxon	etymology	Derivatio nominis. The new species name reflects short setae on body.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
F4CF43CD46011414D244106DFB0E5421.taxon	materials_examined	Material. Japan, Honshu Island, Nobeyama, Nagano, 10. x. 2012, coll. M. Hasegawa; Kitaibaraki, 2. xi. 2011, coll. M. Hasegawa; Hokkaido Island. Shore of Harutori Lake, Kushiro city, 14. v. 2014 and 19. viii. 2014, coll. Y. Suma; Shiretoko Peninsula, surroundings of Utoro, litter of mixed forest, 90 m alt., 20. viii. 2016, 44.1006 ° N, 145.0584 ° E, coll. M. Potapov and N. Kuznetsova; Shiretoko Peninsula, trail to Rausu Mount, ~ 200 m alt., 29. ix. 2013, coll. R. Kitagawa and S. Fujii; ibidem, trail to Rausu Mount, ~ 1000 m alt, oak litter, coll. M. Potapov and N. Kuznetsova. North Korea. Hamgyong-namdo Province (= South Hamgyong), valley N from Song-riong, 03. vi. 1987, and SW from Tanchon, 30. v. 1987, coll. A. Szeptycki. Far East of Russia, Primorsky Krai, Lazovsky District, nearby Preobrazheniye, litter and rotten wood in deciduous and coniferous forests, 400 - 700 m alt., 21. ix. 2011, coll. M. Potapov, Y. Bu, H. Chen-Wang; Khasansky District, Peschany Peninsula, near Beregovoye, litter under dogrose, 09. ix. 2004, coll. M. Potapov, L. Deharveng, R. Pomorski, and A. Bedos, Khasansky District, ~ 15 km S Kraskino, Mramorny Cape, oak wood litter and soil under coastal reed, 28. ix. 2004, coll. M. Potapov, L. Deharveng, R. Pomorski, and A. Bedos; Khasansky District, ~ 15 km W Kraskino, Mayachnoye (Chertova Gorka), forest litter, 28. ix. 2004, coll. M. Potapov, L. Deharveng, R. Pomorski, and A. Bedos; Khasansky District, Krabbe Peninsula, Astafyeva Cape, deciduous litter, v. 2007, coll. E. Sokolova; Khasansky District, " Kedrovaya Pad ", mixed forest, litter, 29. vii. 2016, coll. M. Potapov and N. Kuznetsova; ibidem, coniferous and deciduos litter, 29. ix. 2004, coll. M. Potapov, L. Deharveng, R. Pomorski, and A. Bedos; ibidem, 03. x. 2009, coll. O. Smirnova, ibidem, v. 2015, coll. A. Matalin; Khasansky District, near Barabash, oak wood on slope, litter, 27. ix. 2004, coll. M. Potapov, L. Deharveng, R. Pomorski, and A. Bedos; Partizansky District, vicinities of Ekaterinovka, Chondalaz (= Lazovy) Range, oak litter, 26. ix. 2004, coll. M. Potapov, L. Deharveng, R. Pomorski, and A. Bedos; Ussuriyski District, Ussuriyski Reserve, decaying wood, 5. x. 2004, coll. M. Potapov, L. Deharveng, R. Pomorski, and A. Bedos; Shkotovsky District, Khualaza Mount, 2. x. 2004, coll. R. Pomorski; between Vladivostok and Artem, botanical garden, litter of mixed forest, ix. 2012 and 04. x. 2009, coll. O. Smirnova; Terneysky District, Sikhote-Alimski Reserve, Kabany station, forest litter, 08. viii. 2017, coll. N. Kuznetsova, A. Geras'kina, A. Kuprin; Kavalerovski District, road Kavalerovo-Dal'negorsk, 44.3844 ° N, 135.3639 ° E, mossy larch forest with Rhododendron, 09. viii. 2017, coll. N. Kuznetsova, A. Geras'kina, A. Kuprin; Khabarovsky Krai, Vaninsky District, nearby Datta, coastal larch-wood, 28. ix. 2011, coll. M. Potapov; Vaninsky District, five km N Vysokogorny, valley of Mulinka River, larch-forest litter, ~ 600 m alt., 29. ix. 2011, coll. M. Potapov.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
F4CF43CD46011414D244106DFB0E5421.taxon	description	Description. Body size from 1.2 to 1.7 mm. Body shape as common for the group, not slender (Fig. 13). Usually with large pigment grains rarely scattered on body, more on fused Abd. IV-VI. Cuticle with fine hexagonal primary granulation (" smooth "). Ocelli absent. PAO slender, with clear middle constriction, ' inner denticles' hardly developed, its length 1.2 - 1.7 as long as width of Ant. I and 1.6 - 2.0 as long as inner unguis length (Fig. 24). Labium complete, guard setae e 7 present, three proximal and four basomedian setae. Ventral side of head with 4 + 4 postlabial setae. Ant. I with 15 - 17 common setae, 2 - 3 (see the discussion below, Figs 23, 24) ventral s-setae (s) and three basal micro s-setae (bms): two dorsal bms (short and long) and one ventral bms. Ant. II with three bms and one latero-distal s, Ant. III with one bms and with 5 - 6 distal s (one or two lateral s, Fig. 25). Organite varies in shape, often large. Common setae middle-sized. Setae covering polychaetotic: Abd. IV with 7 - 9 p-setae between medial accp-s, Abd. V with m 1 - setae (marked on Fig. 28). Sensillary formula as 43 / 22235 (s) and 10 / 100 (ms). S-setae long and thin, as long as common setae. Medial s-setae on Th. II-III situated in front position, nearby Md macrosetae, on Abd. I-III in p-row, between Md and Mdl (Figs 21, 22). Abd. V with five s-setae arranged as four in dorsal position, rather long (as, accp 1, accp 2, accp 3), and one latero-ventral, middle-sized (weakly differentiated ' 4 + 1 ' pattern), accp 3 s-setae insignificantly shorter and thicker than accp 2 (Fig. 28). Macrosetae smooth, their length vary from long to moderately long, 2,2 / 3,3,3 in number, medial ones on Abd. V a little shorter than dens (1.0 - 1.3) and 3.7 - 6.0 times longer than mucro. Axial chaetotaxy as 9 - 12,7 - 9, / 4 - 5,4 - 5,4. Thorax without ventral setae (Fig. 10). Empodial appendage approximately half as long as unguis. All tibiotarsi with many additional setae: 29 - 33 on legs I-II, ~ 38 - 42 on leg III. Upper and lower subcoxae of legs I-III with 0,1 / 4 - 6,8 - 11 / 8 - 12,8 - 11 setae, respectively. Coxae of leg I with four (rarely five) front setae. Ventral tube with 5 - 6 + 5 - 6 latero-distal and 6 - 8 posterior setae, anteriorly without setae. Tenaculum with 4 + 4 teeth and a seta. Anterior furcal subcoxae with 11 - 14, posterior one with four setae. Anterior side of manubrium with 4 - 6 + 4 - 6 pair setae and usually with two unpaired axial setae (Fig. 26). Posterior side of manubrium with 3 + 3 latero-basal, two apical setae (ap), 2 + 2 setae in distal transversal row (M 1, L 1), one pair of lateral setae, and 4 (3) + 4 (3) in central part (Fig. 27). Dens with 19 - 23 anterior setae. Posterior side of dens crenulated and with six setae: three basal, two at the middle, and one rudimentary at base of mucro (often hardly visible). Mucro bidentate. Ratio of manubrium: dens: mucro = 3.7 - 6.2: 4.5 - 7.0: 1. Males present.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
F4CF43CD46011414D244106DFB0E5421.taxon	distribution	Distribution and ecology. Species was described from Hokkaido (Hidaka-Mombetsu) and subsequently listed in catalogues of Japanese Collembola (Yosii 1977; Furuno et al. 2000; Niijima and Hasegawa 2011). Known from Hokkaido (Suma 1997, 2008, Hishi et al. 2012), eastern Honshu (Ibaraki) (Hasegawa et al. 2009), Aomori Pref. (Yamauchi and Suma 1999, 2009). In Far East of Russia the species was previously recorded near Ussuriysk (Kutyreva 1988) and in Shikotan Island (as ' F. sp. aff. hidakana ' in Potapov and Marusik 2000). As a whole, distributional range of the species appears to cover southern area of the Russian Far East, North Korea, and northern half of Japan (Fig. 90). It inhabits forest litter and decaying wood in low mountains, rare in higher altitudes.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
CC7C48AE827BC2D38F48F93D7C9F3B11.taxon	materials_examined	Other material. Far East of Russia, Amurskaya Region, various biotopes nearby type locality: litter and rotten wood in mountain tundra, spruce and larch forests at different altitudes (from 400 to 1400 m alt.); Amurskaya Region, ~ three km W Arkhara, oak-forest, litter, 17. viii. 2014, coll. M. Potapov and N. Kuznetsova. China, Inner Mongolia Province, Da Hinngan Ling Mts, ~ 25 km W BaLin, young tussocky wet birch forest, litter, 12. viii. 2014, coll. M. Potapov.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
CC7C48AE827BC2D38F48F93D7C9F3B11.taxon	diagnosis	Diagnosis. Blind. Dorsal macrosetae (Md) present on both Th. II and Th. III. Sensillary formula complete (43 / 22235; 10 / 100). Medial s-setae on body tergites long, set in p-row. Ventral setae on Th. III present. Manubrium on anterior side with 4 - 6 + 4 - 6 setae, no unpaired axial setae, dens with 23 - 27 anterior setae. Mucro bidentate.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
CC7C48AE827BC2D38F48F93D7C9F3B11.taxon	description	Description. Body size from 1.0 to 1.5 mm. Body without pigmentation, relatively tubular (Fig. 39). Cuticle with fine, hexagonal primary granulation (" smooth "). Ocelli absent. PAO slender, constricted, 1.3 - 1.7 as long as width of Ant. I and 1.6 - 2.0 as long as inner unguis length. Labium with five usual papillae (A-E), guard setae e 7 absent, three proximal and four basomedian setae. Ventral side of a head with 4 + 4 postlabial setae. Ant. I with 15 common setae as a rule, two (rarely three) ventral s-setae (s) and three bms, two of which small, dorsal and ventral, the former set together with long seta-form third bms, Ant. II with three bms and one latero-distal s, Ant. III with one bms and with five distal s (including one lateral), without additional s-setae. Several tubular s-setae on Ant. IV. Organite large, rounded. Common setae long. Sensillary formula as 43 / 22235 (s), 10 / 100 (ms) (Figs 36, 37). The most tergal s-setae thin and long. Medial s-setae on Th. II-Abd. III situated in posterior position, on Abd. I-III between Md and Mdl. Latero-ventral s-setae on abdominal tergites shorter than medial (Fig. 37). Abd. V with five s-setae arranged as three dorsal ones (as, accp 1, accp 2), long and slender, one lateral (accp 3), clearly shorter (accp 2: accp 3 = 1.8 - 2.3), and one latero-ventral, short (' 3 + 1 + 1 ' pattern) (Figs 29 - 31). p 1 - setae on Abd. V long (see Table 2). Macrosetae smooth and long, 2,2 / 3,3,3 in number, medial ones on Abd. V 1.5 - 1.8 times shorter than dens and 4.7 - 6.2 times longer than mucro. Axial chaetotaxy as 10 - 11,6, / 3 - 4,3 - 4,3 - 4. Metathorax with 3 + 3 ventral setae of which one long and two short. Unguis of normal shape, without lateral and inner teeth. Empodial appendage as long as 0.5 - 0.6 unguis. All tibiotarsi with additional setae: 26 - 29 on legs I-II and> 35 on leg III. Upper and lower subcoxae of legs I-III with 0,1 / 3,8 - 9 / 5 - 6,8 - 10 setae, respectively. Coxae of leg I with three front setae. Tibiotarsal tenent setae pointed, some setae on distal half of tibiotarsi thickened. Ventral tube with 4 + 4 latero-distal and 7 - 8 posterior setae (four in distal transversal row and 3 - 4 in more proximal position), an teriorly without setae. Tenaculum with 4 + 4 teeth and a seta. Anterior furcal subcoxae with 8 - 9, posterior one with five setae. Anterior side of manubrium with 4 - 6 + 4 - 6 setae, their position vary, unpaired setae absent (Figs 33 - 35). Posterior side of manubrium with 4 + 4 latero-basal, two apical setae (ap), 3 + 3 setae in distal transversal row (M 1, ml 1, L 1), two pairs of lateral setae, and 3 - 4 + 3 - 4 in central part (Fig. 38). Dens with 19 - 24 anterior setae. Posterior side of dens crenulated and with six normal setae (four basal and two at the middle) and usually one rudimentary minute seta at the base of mucro (Fig. 38). Mucro bidentate. Ratio of manubrium: dens: mucro = 4.5 - 6.2: 7.2 - 9.3: 1. Males present.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
CC7C48AE827BC2D38F48F93D7C9F3B11.taxon	distribution	Distribution and ecology. Known from three neighboring localities of inner part of East Asia (Fig. 90). The species occurs in forest litter at different altitudes.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
CC7C48AE827BC2D38F48F93D7C9F3B11.taxon	etymology	Derivatio nominis. The species is common in areas around Amur River lowlands.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
2A95130881C35451C034EC16281078EA.taxon	materials_examined	Material. Far East of Russia, Magadanskaya Region, Ten'kinsky District, village Kulu, 04. ix. 1995, coll. S. Bukhkalo.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
2A95130881C35451C034EC16281078EA.taxon	distribution	Distribution. It is the most northern species of the ' inoculata ' group since known so far only in the basin of Kolyma River (NE Asiatic part of Russia).	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
3CAFED5F15DE9038A3459D10BF8ECB74.taxon	materials_examined	Other material. Far East of Russia, Primorsky Krai, Bikin River near confluence to Amba River, mixed forest litter, 29. ix. 2009, coll. O. Smirnova; Ussuriyski District, Ussuriyski Reserve, decaying wood, 5. x. 2004, coll. M. Potapov, L. Deharveng, R. Pomorski, and A. Bedos; Shkotovsky District, trail to Khualaza Mount, rotten wood, 21. vii. 2016, coll. M. Potapov and N. Kuznetsova; Partizansky District, vicinities of Ekaterinovka, Chondalaz (= Lazovy) Range, oak litter, 26. ix. 2004, coll. M. Potapov, L. Deharveng, R. Pomorski, and A. Bedos; Khasansky District, vicinities of Barabash, oak litter, 200 - 400 m alt., 27. ix. 2004, coll. M. Potapov; Sakhalin, Kholmsky District, South Kamysh Ridge, Spamberg Mt., moss in mixed and coniferous forests, 14 - 15. vi. 2017, coll. A. Kuprin; Korsakovsky District, vicinities of Korsakov, forest litter, 16. vi. 2017, coll. A. Kuprin; Khabarovsky Krai, suburbs of Khabarovsk, Voronez highlands, leaf litter near river bank. 26. iv. 2010, coll. M. Potapov; Verkhnebureinsky District, western part of Badjal Range, upper flow of Irungda River (tributory of Amgun' River), 1900 m alt., subalpine litter and moss, 23. vi. 2014, coll. A. Brinev. North Korea. Hamgyong-namdo Province (= South Hamgyong), SW from Tanchon, 30. v. 1987, coll. A. Szeptycki; Yanggang-do Province, Rimjong-su Waterfall, litter, 7. vii. 1985, coll. A. Szeptycki. Material of F. sp. aff. imparis. Khabarovsky Krai (western part), Bureyskoye Reservoir, Nizny Mel'gin Bay, 50.5539 ° N, 131.3970 ° E, 12. ix. 2009, coll. M. Babykina; Amurskaya Region, ~ 3 km N Zeya, oak litter, 22. viii. 2014, coll. M. Potapov and N. Kuznetsova.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
3CAFED5F15DE9038A3459D10BF8ECB74.taxon	diagnosis	Diagnosis. Blind. Dorsal macrosetae (Md) present on both Th. II and Th. III. Sensillary formula complete (43 / 22235; 10 / 100). Medial s-setae on body tergites long, set in p-row. Ventral setae on Th. III present. Manubrium on anterior side with 3 - 5 + 3 - 5 paired and 2 - 3 unpaired axial setae, dens with 23 - 27 anterior setae. Mucro bidentate.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
3CAFED5F15DE9038A3459D10BF8ECB74.taxon	description	Description. Body size from 0.9 to 1.4 mm. Body without pigmentation, its shape as in F. amurica sp. n. Cuticle with fine hexagonal primary granulation (" smooth "). Ocelli absent. PAO slender, constricted, 1.4 - 1.7 as long as width of Ant. I and 1.7 - 1.9 as long as inner unguis length. Labium with five usual papillae (A-E), guard setae e 7 absent, three proximal and four basomedian setae. Ventral side of a head with 4 + 4 postlabial setae. Ant. I with 15 - 17 common setae, two ventral s-setae (s) and three bms, one long (inseparable from common setae) and two short, Ant. II with three bms and one latero-distal s, Ant. III with one bms and with five distal s (including one lateral), without additional s-setae (Fig. 46). Several tubular s-setae on Ant. IV. Organite stick-like, small. Common setae long and sparse. Sensillary formula as 43 / 22235 (s), 10 / 100 (ms). Tergal s-setae thin and long. Medial s-setae on Th. II-Abd. III situated in posterior position, on Abd. I-III between Md and Mdl. Abd. V with five s-setae arranged as four ones (as, accp 1, accp 2, accp 3), long and slender, and one latero-ventral, short (' 4 + 1 ' pattern) (Figs 32, 40), accp 3 s-setae almost as long as accp 2 (accp 2: accp 3 = 1.0 - 1.2). p 1 - setae on Abd. V short (see also the Discussion and Table 2). Macrosetae smooth and long, 2,2 / 3,3,3 in number, medial ones on Abd. V 1.5 - 2.0 times shorter than dens and 4.8 - 7.7 times longer than mucro. Metathorax with 3 + 3 (rarely, 4 + 3) ventral setae, as in F. amurica sp. n. Unguis of normal shape, without lateral and inner teeth. Empodial appendage as long as 0.4 - 0.5 unguis. Tibiotarsi with 26 - 28 setae on legs I-II and 33 - 37 on leg III. Upper and lower subcoxae of legs I-III with 0,1 / 3, ~ 7 / 5 - 6,7 - 8 setae, respectively. Coxae of leg I with three front setae. Tibiotarsal tenent setae pointed, some setae on distal half of tibiotarsi thickened. Ventral tube with 4 + 4 latero-distal and seven posterior setae (four in distal transversal row and three in more proximal position), anteriorly without setae. Tenaculum with 4 + 4 teeth and a seta. Anterior furcal subcoxae with 10 - 12, posterior one with five setae. Anterior side of manubrium with 3 - 5 + 3 - 5 pair setae, and 2 - 3 (rarely one) axial unpaired setae (Figs 43 - 45). Posterior side of manubrium with 4 + 4 latero-basal, two apical setae (ap), 3 + 3 setae in distal transversal row (M 1, ml 1, L 1), two pairs of lateral setae, and 3 - 4 + 3 - 4 in central part (Fig. 41). Dens with 23 - 27 anterior setae (Figs 41, 42). Posterior side of dens crenulated and with six normal setae (four basal and two at the middle) and one rudimentary seta at the base of mucro. Mucro bidentate. Ratio of manubrium: dens: mucro = 5.2 - 6.6: 9.4 - 11.7: 1. Males present.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
3CAFED5F15DE9038A3459D10BF8ECB74.taxon	distribution	Distribution and ecology. The species is widely distributed in Far East of Russia, Korea and in the most northern part of Japan (Fig. 90). We suppose some records of F. fimetaria in Hokkaido refer to this species. F. imparis sp. n. is rather common in different forest litter, often in rotten wood.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
3CAFED5F15DE9038A3459D10BF8ECB74.taxon	etymology	Derivatio nominis. The species has unpaired setae on anterior side of manubrium.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
C8D15C719646467BB8CEF47A10BF271F.taxon	materials_examined	Other material. Far East of Russia, Khabarovsky Krai, Vicinities of Nikolaevsk-na-Amure, lower flow of Amgun' River, larch and birch forests, 1. vii. 1990, coll. N. Ryabinin; Primorsky Krai, Ussuriysky Reserve, Komarovskoye Forest District, mixed forest, 22. vii. 2016, coll. M. Potapov and N. Kuznetsova; Terneysky District, Sikhote-Alinski Reserve, Kabany station, hardwood with Rhododendron, litter, 08. viii. 2017, coll. N. Kuznetsova, A. Geras'kina, A. Kuprin; South Kuril Islands, Kunashir Isl., Krugly Cape and 5 km E Yu-Kuril'sk, viii-ix. 1997, coll. Y. Marusik. South Korea, Gangwon-do, Palsan Mt., mixed forest in foothills, litter, 09. ix. 2017, coll. A. Kuprin.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
C8D15C719646467BB8CEF47A10BF271F.taxon	description	Description. Body size from 0.9 to 1.5 mm. Body without pigmentation, cuticle with fine primary granulation. Ocelli absent. PAO slender, constricted, 1.4 - 1.6 as long as width of Ant. I and 1.4 - 2.2 as long as inner unguis length. Labium with five usual papillae (A-E), guard setae e 7 absent, three proximal and four basomedian setae. Ventral side of a head with 4 + 4 postlabial setae. Ant. I with 15 - 16 common setae, s-setae of antennae as in F. imparis sp. n. Organite stick-like, small. Common setae long. Sensillary formula as 43 / 22235 (s), 10 / 100 (ms). Tergal s-setae long, medial ones on Th. II-Abd. III situated in posterior position. Abd. V with five s-setae arranged as four ones (as, accp 1, accp 2, accp 3), long and slender, and one latero-ventral, short (' 4 + 1 ' pattern), accp 3 s-setae somewhat shorter than accp 2 (accp 2: accp 3 = 1.1 - 1.5). p 1 - setae on Abd. V long (Fig. 47, see also the Discussion and Table 2). Macrosetae smooth and long, 2,2 / 3,3,3 in number, medial ones on Abd. V 1.3 - 1.7 times shorter than dens and 4.6 - 6.4 times longer than mucro. Metathorax with 3 + 3 ventral setae, one long. Unguis of normal shape. Empodial appendage as long as 0.50 - 0.55 of unguis. Chaetotaxy of tibiotarsi and subcoxae similar to F. amurica sp. n. and F. imparis sp. n. Number of front setae on coxae of leg I varies (2 - 3), variant with two setae common for specimens from Magadan and Kunashir. Ventral tube with 4 + 4 latero-distal and 6 - 8 posterior setae, anteriorly without setae. Tenaculum with 4 + 4 teeth and a seta. Anterior furcal subcoxae with 11 - 12, posterior one with five setae. Anterior side of manubrium with 2 - 3 + 2 - 3 pairs of setae (2 + 2 usually in males), without axial unpaired setae (Figs 48 - 49). Dens with 21 - 30 anterior setae. Posterior side of dens crenulated and with six normal setae and one rudimentary at the base of mucro. Mucro bidentate. Ratio of manubrium: dens: mucro = 4.3 - 5.7: 6.4 - 10.0: 1. Males present.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
C8D15C719646467BB8CEF47A10BF271F.taxon	distribution	Distribution. Scattered records all over the coastal areas from Magadan (Russian Far East) to South Korea (Fig. 90).	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
4D1488DC106FF666EF0BBEF21F33522B.taxon	materials_examined	Material. Far East of Russia, Primorsky Krai, Partizansky District, vicinities of Ekaterinovka, Chondalaz (= Lazovy) Range, oak litter, 26. ix. 2004, coll. M. Potapov, L. Deharveng, R. Pomorski, and A. Bedos; Shkotovsky District, vicinities of Anisimovka and near trail to Khualaza Mount, forest litter, 10 - 12. ix. 2001, coll. M. Potapov, Y. Bu and H. Cheng-Wang; Terneysky District, Sikhote-Alimski Reserve, Blagodatny station, oak wood on slope, rotten wood, 07. viii. 2017, coll. N. Kuznetsova, A. Geras'kina, A. Kuprin.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
4D1488DC106FF666EF0BBEF21F33522B.taxon	distribution	Distribution and ecology. Less common than the sympatric F. imparis sp. n. and F. macrochaetosa. Rare records in forest litter of southern part of Far East of Russia.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
3725F8B8BC98D8C4CBE2D97B905D7084.taxon	materials_examined	Other material. Amurskaya Region, Khingansky Reserve, ~ 15 - 20 km SE Uril, oak wood litter, 8. x. 2009, coll. M. Babykina. North Korea, Yanggang-do Province, ~ 1.5 km SE Mupho, litter under Rhododendron and Alnus, 5. vii. 1985, coll. A. Szeptycki.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
3725F8B8BC98D8C4CBE2D97B905D7084.taxon	diagnosis	Diagnosis. Blind. Dorsal macrosetae (Md) present on both Th. II and Th. III. Sensillary formula incomplete (33 / 22224; 10 / 000). Medial s-setae on body tergites long, set in p-row. Ventral setae on Th. III present. Anterior side of manubrium with 3 + 3 setae, no unpaired axial setae present. Dens with 17 - 20 anterior setae, its posterior side with three setae in basal part. Mucro bidentate.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
3725F8B8BC98D8C4CBE2D97B905D7084.taxon	description	Description. Body size approximately 1.3 mm (Fig. 51). Without pigmentation. Cuticle with fine primary granulation (" smooth "). Ocelli absent. PAO slender, not constricted or slightly constricted, 1.5 - 1.7 as long as width of Ant. I and 1.7 - 2.0 as long as inner unguis length. Labium complete, guard setae e 7 present, three proximal and four basomedian setae. Ventral side of head with 4 + 4 postlabial setae. Ant. I with 16 - 17 common setae, two ventral s-setae (s) and three basal micro s-setae (bms): two dorsal (short and long) and one ventral. Ant. II with three bms and one latero-distal s, Ant. III with one bms and with five distal s (including one lateral), without additional s-setae. Ant. IV with stick-like organite. Common setae sparse, macrosetae long (Fig. 51). Sensillary formula as 33 / 22224 (s), three s-setae lost: corner accp-s on Th. II, one of dorsal accp-s on Abd. IV, and as-s on Abd. V (Figs 55 - 56). Micro s-setae as 10 / 000 (ms). Tergal s-setae thin and long, lateral s-setae on abdomen shorter. Medial s-setae on Th. II-Abd. III situated in posterior position, on Abd. I-III between Md and Mdl. Abd. V with four s-setae arranged as three long and slender (accp 1, accp 2, accp 3) and one latero-ventral, short (' 3 + 1 ' pattern) (Figs 52, 57), accp 3 s-setae as long as accp 2 (ratio accp 2: accp 3 = 1.0 - 1.2). Macrosetae smooth and very long, 2,2 / 3,3,3 in number, medial ones on Abd. V slightly shorter than dens (dens: Md = 1.0 - 1.3) and 7.3 - 9.3 times longer than mucro. Metathorax with 3 + 3 ventral setae. Unguis of normal shape, without lateral and inner teeth. Empodial appendage as long as ~ 0.5 of unguis. All tibiotarsi with additional setae: 28 - 29 on legs I-II and> 35 on leg III. Upper and lower subcoxae of legs I-III with 0,1 / 3,7 / 6,8 setae, respectively. Coxae of leg I with three front setae. Tibiotarsal tenent setae pointed, few setae on dis tal half of tibiotarsi III slightly thickened. Ventral tube with 4 + 4 latero-distal and 6 - 7 posterior setae (4 in distal transversal row), anteriorly without setae. Tenaculum with 4 + 4 teeth and a seta. Anterior furcal subcoxae with 12 - 14, posterior one with five setae. Anterior side of manubrium with 3 + 3 setae (Fig. 54). Posterior side of manubrium with 5 + 5 latero-basal, two apical setae (ap), 2 + 2 setae in distal transversal row (M 1, ml 1), two pairs of lateral setae, and 4 + 4 in central part (Fig. 54). Dens with 17 - 20 anterior setae. Posterior side of dens crenulated and with six setae: three basal, two at the middle, and one subapical (Fig. 54). Subapical seta often hardly visible. Mucro bidentate. Ratio of manubrium: dens: mucro = 5.4 - 7.2: 7.8 - 9.3: 1.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
3725F8B8BC98D8C4CBE2D97B905D7084.taxon	distribution	Distribution and ecology. Known from three locations in Russian Far East and North Korea (Fig. 90). It occurs in forest litter.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
3725F8B8BC98D8C4CBE2D97B905D7084.taxon	etymology	Derivatio nominis. The species shows the most laconic chaetotaxy of p-row on Abd. V.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
380BDA1FBCBF858908FC014A62654628.taxon	materials_examined	Other material. Far East of Russia, Khabarovsky Krai. Different sites of type locality, litter and rotten wood, 29. ix. 2011, coll. M. Potapov; Kamchatka. Nearby Anavgai and Esso settlements, different larch forests, litter and rotten wood, ~ 500 m alt., 4. vii. 2012, coll. M. Potapov; Primorsky Krai. Terneysky District, Sikhote-Alimski Reserve, Kabany station, forest litter, 08. viii. 2017, coll. N. Kuznetsova, A. Geras'kina, A. Kuprin; East Siberia: Chitinskaya Region, near foothills of Daursky Range, valley of Ilya River, ~ three km station Ara-Ilya, 50.9253 ° N, 113.1783 ° E, 887 m alt., mixed forest with Betula and Larix, 11. vii. 2014, coll. A. Gulgenova.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
380BDA1FBCBF858908FC014A62654628.taxon	diagnosis	Diagnosis. Blind. Dorsal macrosetae (Md) present on both Th. II and Th. III. Sensillary formula incomplete (33 / 22224; 10 / 000). Medial s-setae on body tergites long, set in p-row. Ventral setae on Th. III present. Anterior side of manubrium with 3 + 3 paired setae, no unpaired axial setae present. Dens with 12 - 16 anterior setae, its posterior side with four setae in basal part. Mucro bidentate.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
380BDA1FBCBF858908FC014A62654628.taxon	description	Description. Body size from 1.0 to 1.3 mm, rather tubular (Fig. 50). Without pigmentation. Cuticle " smooth ". PAO slender, slightly constricted, 1.5 - 1.7 as long as width of Ant. I and 1.7 - 2.0 as long as inner unguis length (Fig. 62). Labium complete, guard setae e 7 present, three proximal and four basomedian setae. Ventral side of head with 4 + 4 postlabial setae. Ant. I with 15 - 16 common setae, two ventral s-setae (s) and three basal micro s-setae (bms): two dorsal (short and long) and one ventral. Ant. II with three bms and one latero-distal s, Ant. III with one bms and with five distal s (including one lateral), without additional s-setae. Several s-setae on Ant. IV tubular. Organite middle-sized, roundish. Common setae long. Sensillary formula as 33 / 22224 (s), three s-setae lost (as described for the ' laconica ' subgroup (Figs 58, 59). Corner s-setae on Th. II absent (Fig. 60). Micro s-setae as 10 / 000 (ms). Tergal s-setae thin and long, lateral s-setae on abdomen shorter. Medial s-setae on Th. II-Abd. III situated in posterior position, on Abd. I-III between Md and Mdl. Abd. V with four s-setae arranged as three long and slender (accp 1, accp 2, accp 3) and one latero-ventral, short (' 3 + 1 ' pattern) (Figs 53, 61), accp 3 s-setae as long as accp 2 (0.9 - 1.1). Macrosetae smooth and long, 2,2 / 3,3,3 in number, medial ones on Abd. V slightly shorter than dens (1.0 - 1.3) and 3.5 - 4.6 times longer than mucro. Metathorax with 3 + 3 ventral setae. Empodial appendage as long as 0.5 - 0.6 of unguis. All tibiotarsi with additional setae: 24 - 26 on legs I-II and 30 - 35 on leg III. Upper and lower subcoxae of legs I-III with 0,1 / 3,7 - 8 / 6 - 7,7 - 8 setae, respectively. Coxae of leg I with three (rarely two on one side) front setae. Tibiotarsal tenent setae pointed, some setae of distal whorl of tibiotarsi thickened. Ventral tube with 4 + 4 latero-distal and 7 - 8 posterior setae (four in distal transversal row and 3 - 4 in more proximal position), anteriorly without setae. Tenaculum with 4 + 4 teeth and a seta. Anterior furcal subcoxae with 8 - 10, posterior one with four setae. Anterior side of manubrium with 3 + 3 setae (rarely 2 + 3) (Fig. 63). Posterior side of manubrium with 5 (4) + 5 (4) latero-basal, two apical setae (ap), 2 + 2 setae in distal transversal row (M 1, ml 1), two pairs of lateral setae, and 4 - 6 + 4 - 6 in central part (Fig. 63). Dens with 12 - 16 anterior setae. Posterior side of dens crenulated and with five setae (4 basal and one shorter one at the base of mucro), two setae at the middle present or absent (Figs 63, 64, see also the Discussion part). Mucro bidentate. Ratio of manubrium: dens: mucro = 4.1 - 5.0: 3.9 - 5.2: 1.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
380BDA1FBCBF858908FC014A62654628.taxon	distribution	Distribution and ecology. Known from forest litter in three localities in Eastern Asia (Fig. 90).	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
380BDA1FBCBF858908FC014A62654628.taxon	etymology	Derivatio nominis. The new species name reflects the presence of three (vs four, as common for the genus) s-setae on dorsal side of Abd. V that is characteristic of the ' laconica ' subgroup.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
AFE346ECAF079E38CA055C55A5AE15A1.taxon	diagnosis	Diagnosis. Blind. Dorsal macrosetae (Md) present on both Th. II and Th. III. Sensillary formula incomplete (33 / 22224; 10 / 000). Medial s-setae on body tergites long, set in p-row. Ventral setae on Th. III present. Anterior side of manubrium with 2 + 2 setae, no unpaired axial setae present. Dens with 13 - 16 anterior setae, its posterior side with four setae in basal part. Mucro bidentate.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
AFE346ECAF079E38CA055C55A5AE15A1.taxon	description	Description. Body size from 0.9 to 1.2 mm, shape of corpus rather tubular, slender. Without pigmentation. Cuticle with fine hexagonal primary granulation (" smooth "). PAO slender, insignificantly constricted, 1.6 - 1.8 as long as width of Ant. I and 2.1 - 2.2 as long as inner unguis length. Labium complete, guard setae e 7 present, three proximal and four basomedian setae. Ventral side of head with 4 + 4 postlabial setae. Ant. I with 14 - 15 common setae, two ventral s-setae (with one thick) and three basal micro s-setae (bms): two dorsal (short and long) and one ventral. Ant. II with three bms and one latero-distal s, Ant. III with one bms and with five distal s (including one lateral), without additional s-setae. Organite normal, small. Sensillary formula as 33 / 22224 (s), three s-setae lost (as in other species of the subgroup, Fig. 65). Micro s-setae as 10 / 000 (ms). Tergal s-setae thin and long, lateral s-setae on abdomen shorter. Medial s-setae on Th. II-Abd. III situated in posterior position, on Abd. I-III between Md and Mdl. Abd. V with four s-setae arranged as three ones (accp 1, accp 2, accp 3), long and slender, and one latero-ventral, shorter (' 3 + 1 ' pattern) (Fig. 66), accp 3 s-setae almost as long as accp 2 (accp 3: accp 2 = 0.8 - 1.0). With 3 + 3 medial p-setae on Abd. V: p 1 and p 3 long, p 2 short. Seta p 1 somewhat longer than a 1 and accp 1 - s on Abd. V (a 1: p 1 = 0.7 - 0.8, accp 1: p 1 = 0.8 - 0.9). Macrosetae smooth and rather long, 2,2 / 3,3,3 in number, medial ones at the end of abdomen slightly shorter than dens (0.8 - 0.9) and 2.8 - 3.9 times longer than mucro. Metathorax with 3 + 3 ventral setae. Empodial appendage as long as 0.55 - 0.60 of unguis. Tibiotarsi with few additional setae: 22 - 24 on legs I-II and ~ 29 on leg III. Upper and lower subcoxae of legs I-III with 0,1 / 3,7 / 3 - 5, ~ 8 setae, respectively. Coxae of leg I with two front setae. Tibiotarsal tenent setae pointed, few setae of whorl of tibiotarsi insignificantly thickened. Ventral tube with 4 + 4 latero-distal and 5 - 7 posterior setae (four in distal transversal row and 1 - 3 in more proximal position), anteriorly without setae. Tenaculum with 4 + 4 teeth and a seta. Anterior furcal subcoxae with 7 - 9, posterior one with 5 - 6 setae. Anterior side of manubrium with 2 + 2 setae (Fig. 68). Posterior side of manubrium with 5 + 5 latero-basal, two apical setae (ap), 2 + 2 setae in distal transversal row (M 1, ml 1), one pair of lateral setae, and 3 (2) + 3 (2) in central part (Fig. 67). Dens with 13 - 16 anterior setae. Posterior side of dens crenulated and with seven setae (four basal, two at the middle, and one very short at the base of mucro) (Figs 68). Two setae at the middle of dens often very short, one sometimes absent. Subapical seta often hardly visible. Mucro bidentate. Ratio of manubrium: dens: mucro = 3.1 - 4.1: 3.3 - 4.5: 1. Males present.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
AFE346ECAF079E38CA055C55A5AE15A1.taxon	distribution	Distribution. Known only from type locality.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
AFE346ECAF079E38CA055C55A5AE15A1.taxon	etymology	Derivatio nominis. The new species is the third (tertius in Latin) species of the ' laconica ' subgroup.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
784019BFD916B710EC89228CE9CE6640.taxon	diagnosis	Diagnosis. Blind. Body slender. Dorsal macrosetae (Md) present on both Th. II and Th. III. Sensillary formula incomplete (43 / 22235; 10 / 000). Medial s-setae on body tergites in anterior position. Th. III with 1 + 1 ventral setae. Anterior side of manubrium with 1 + 1 setae, dens with 6 - 7 anterior setae. Mucro bidentate.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
784019BFD916B710EC89228CE9CE6640.taxon	description	Description. Body size near 1.1 mm (for the largest subadult female). Body slender, tubular (Fig. 69). Cuticle with fine hexagonal primary granulation (" smooth "). Ocelli absent. PAO slender, constricted, 1.8 - 2.5 as long as width of Ant. I and 2.3 - 2.7 as long as inner unguis length. Labium with five usual papillae (A-E), guard setae e 7 absent, three proximal and four basomedian setae. Ventral side of head with 3 + 3 postlabial setae. Ant. I with 11 - 12 common setae, two ventral s-setae (s) and three basal micro s-setae (bms), two dorsal (middle-sized and short) and one ventral (short), Ant. II with three bms and one latero-distal s, Ant. III with one bms and with four distal s (lateral s absent), without additional s-setae. Organite short and small. Common setae short. Sensillary formula as 43 / 22235 (s), 10 / 000 (ms) (Fig. 71). Tergal s-setae thin and hardly differ from common seta, longer on dorsal side of Abd. V. Medial s-setae on Th. II-Abd. III situated in mid-tergal position, on Abd. I-III between Md and Mdl. Abd. V with five s-setae arranged as four ones (as, accp 1, accp 2, accp 3), long and slender, and one latero-ventral, short (' 4 + 1 ' pattern) (Fig. 72), accp 3 s-setae almost as long as accp 2 (0.9 - 1.2). Macrosetae smooth, 2,2 / 3,3,3 in number, medial ones on Abd. V as long as 0.8 - 1.3 of dens and 2.6 - 3.3 times longer than mucro. Metathorax with 1 + 1 ventral setae. Unguis of normal shape, without lateral and inner teeth. Empodial appendage as long as 0.4 - 0.5 of unguis. Tibiotarsi with few setae: 21 - 22 on legs I-II and 24 - 27 on leg III. Upper and lower subcoxae of legs I-III with 0,1 / 3,5 - 7 / 4 - 5,6 - 6 setae, respectively. Coxae of leg I with two front setae. Ventral tube with 4 + 4 latero-distal and 4 - 5 posterior setae (four in distal transversal row), anteriorly without setae. Tenaculum with 4 + 4 teeth and a seta. Anterior furcal subcoxae with 3 - 4, posterior one with three setae. Anterior side of manubrium with 1 + 1 setae (Fig. 75). Posterior side of manubrium with 3 + 3 latero-basal, 4 + 4 on main part, and 1 + 1 setae on lateral side (Fig. 73). Dens with seven (rarely six) anterior setae (Figs 74 and 75). Posterior side of dens slightly crenulated and with three setae (two basal and one at the base of mucro. Mucro bidentate. Ratio of manubrium: dens: mucro = 2.8 - 3.9: 2.6 - 3.4: 1.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
784019BFD916B710EC89228CE9CE6640.taxon	distribution	Distribution and ecology. Known only from the type locality. The species possibly belongs to calciphilous fauna.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
784019BFD916B710EC89228CE9CE6640.taxon	etymology	Derivatio nominis. The species was recorded in calcareous soil.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
CE594A8C6D9A5D444CFC4BEC48EB0B8C.taxon	diagnosis	Diagnosis. Blind. Body slender. Dorsal macrosetae (Md) present on both Th. II and Th. III. Sensillary formula complete (43 / 22235; 10 / 100). Medial s-setae on body tergites set in p-row. Th. III with 2 + 2 ventral setae. Anterior side of manubrium with 1 + 1 setae, dens with 5 - 7 anterior setae. Mucro bidentate.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
CE594A8C6D9A5D444CFC4BEC48EB0B8C.taxon	description	Description. Body size 0.8 - 0.9 mm. Body slender, tubular (Fig. 70). Cuticle orthogonal, finely reticulated. Ocelli absent. PAO slender, not constricted or slightly constricted, 1.5 - 1.8 as long as width of Ant. I and 2.3 - 2.4 as long as inner unguis length (Fig. 78). Labium with five usual papillae (A-E), guard setae e 7 present, three proximal and four basomedian setae. Ventral side of head with 3 - 4 + 3 - 4 postlabial setae. Ant. I with eleven common setae, two ventral s-setae (s) and three basal micro s-setae (bms) (Fig. 78), two dorsal (middle-sized and short) and one ventral (short), Ant. II with three bms and one latero-distal s, Ant. III with one bms (not found in one specimen) and with five distal s (including one lateral), without additional s-setae. Organite short and small. Common setae short. Sensillary formula as 43 / 22235 (s). Medial s-setae on Th. II-Abd. III situated in p-row, on Abd. I-III between Md and Mdl (Figs 76, 77). Tergal s-setae vary in length depending on position. Long s-setae: two accp-s on Th. II, medial accp-s on Th. III-Abd. II. Short s-setae: all as-s on Th. II-III, corner accp-s on Th. III, lateral accp-s on Abd. I-III, medial accp-s on Abd. III. Two dorsal accp-s on Abd. IV long, latero-ventral short. Abd. V with five s-setae arranged as four (as, accp 1, accp 2, accp 3), long and slender, and one latero-ventral short (' 4 + 1 ' pattern) (Figs 76, 77, 79), accp 3 s-setae as long as accp 2. Micro s-formula as 10 / 100 (ms), but ms-setae of Abd. I very small and hardly visible (Fig. 76). Macrosetae smooth and short, 2,2 / 3,3,3 in number, medial ones on Abd. V as long as 0.9 - 1.0 dens and 2.4 - 2.9 times longer than mucro. Metathorax with 2 + 2 ventral setae. Empodial appendage as long as 0.4 - 0.5 of unguis. Tibiotarsi with 22 setae on legs I-II and 25 - 27 on leg III. Upper and lower subcoxae of legs I-III with 0,1 / 1,6 - 7 / 3 - 4,5 - 6 setae, respectively. Coxae of leg I with two front setae. Ventral tube with 4 + 4 latero-distal and three (seen in only one specimen) posterior setae, anteriorly without setae. Tenaculum with 4 + 4 teeth and a seta. Anterior furcal subcoxae with 6 - 7, posterior one with three setae. Anterior side of manubrium with 1 + 1 setae (Fig. 80). Posterior side of manubrium with 3 + 3 latero-basal, 4 - 5 + 4 - 5 on main part, and without setae on lateral sides (Fig. 80). Dens with 5 - 7 anterior setae. Posterior side of dens slightly crenulated and with three setae (two basal and one at the base of mucro. Mucro bidentate. Ratio of manubrium: dens: mucro = 3.0 - 3.5: 2.3 - 2.5: 1. Males present.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
CE594A8C6D9A5D444CFC4BEC48EB0B8C.taxon	distribution	Distribution. Known from the type locality.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
CE594A8C6D9A5D444CFC4BEC48EB0B8C.taxon	etymology	Derivatio nominis. The species is named after tubular shape of body.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
E625075B561C0CAB1466E7E2E0AC00F7.taxon	materials_examined	Additional material. East Asia. Japan, Honshu Island. Nagano Prefecture, E Chino city, Kitayama, surroundings of Mugikusa Hutte, 2255 m alt., 36.0404 ° N, 138.3679 ° E, coniferous green moss forest with Tsuga, north slope, litter, 10. viii. 2016; ibidem, 36.0653 ° N, 138.3410 ° E, stony meadow, grass turf, 11. viii. 2016, coll. M. Potapov and N. Kuznetsova; Hokkaido Island. Japan, Hokkaido Island, Shiretoko Peninsula, trail to Mont. Rausu, different forests, litter and rotten wood, 19. viii. 2016, from 350 to 1100 m alt.; Shiretoko Peninsula, nearby Shiretoko Pass, 593 m alt., 44.0617 ° N, 145.0913 ° E, stony mixed forest with Betula ermanii, 17. viii. 2016; Shiretoko Peninsula, surroundings of Utoro, 500 - year mixed forest, rotten wood, 20. viii. 2016, 97 m alt., 44.1006 ° N, 145.0584 ° E, coll. M. Potapov and N. Kuznetsova. China: Jilin Province, 5. viii. 2009, Nearby Tian Lake, Changbai Mts., 1718 m alt., coniferous forest, soil under tree, coll. D. Wu. Far East of Russia, Primorsky Krai, Shkotovsky District, Pidan Mount, ~ 800 m alt., rotten wood, 20. ix. 2004, coll. M. Potapov, L. Deharveng, R. Pomorski, and A. Bedos; Shkotovsky District, trail to Mont. Khualaza, deciduous forest, rotten wood. 21. vii. 2016, coll. M. Potapov and N. Kuznetsova; Sakhalin, Kholmsky District, South Kamysh Ridge of the Western Sakhalin Mountains, Spamberg Mt., mixed forest on slope, litter, 15. vi. 2017, coll. A. Kuprin; Yuzhno-Sakhalinsk, Susunaysky Range, Chekhov peak, litter on top, 16. vi. 2017, coll. A. Kuprin; Khabarovsky Krai, Sikhote-Alin Range, Nanaisky District, ~ 15 km N road Khabarovsk-Sovetskaya Gavan, Golaya mount. massif, Studeny Pass, coniferous forest, rotten wood, 28. vi- 07. vii. 2017, coll. A. Brinev; Sikhote-Alin Range, Vaninsky District, nearby Vysokogorny, valley of Mulinka River, rotten wood, ~ 600 m alt., 29. ix. 2011, coll. M. Potapov; Vaninsky District, nearby Datta, coastal larch-wood, 28. ix. 2011, coll. M. Potapov; Kamchatka, Elizovsky District, vicinities of Malki, 53.3219 ° N, 157.5502 ° E, 260 m alt., Betula ermanii forest, litter and rotten wood, 26. vi. 2012, coll. M. Potapov and N. Kuznetsova. Additionally, specimens from 32 localities, i. e. Ukraine (Skolevskiye Beskids), Bosnia (Perucica), Germany (Helgoland Isl., Zittau Mts, and Bavarian Alps), France (Mont Blanc), Russia (Komi, Middle Ural Mts.), Caucasus (Teberda, Guzeripl, Tsey, Khosta, Krasnaya Polyana, Lagonaki, and several other locations in Western part of North Caucasus), Armenia (Dilizhan), Georgia (Batumi, Kutaisi), Turkey (one unprecise locality, coll. L. Deharveng), Kazakstan (West Altai), Russia, West Siberia (Altai Mts.) and East Siberia (Podkamennaya Tunguska, Shira, W Sayan Mts), were examined.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
E625075B561C0CAB1466E7E2E0AC00F7.taxon	description	Description. Body stout, very characteristic, head massive, with swollen front (Fig. 81) and brown robust mouth parts. Size from 0.9 to 1.7 mm. Without pigmentation. Cuticle with fine hexagonal primary granulation. PAO slender, usually constricted, often with small " inner denticles " (Figs 83 - 85) (see also the Discussion part). PAO length 1.1 - 1.7 as long as width of Ant. I and 1.3 - 2.1 as long as inner unguis length. Labium complete, guard setae e 7 present, three proximal and four basomedian setae. Mandible and maxillary head strongly sclerotized. Ventral side of head with 4 + 4 postlabial setae. Ant. I with 13 - 15 common setae, two ventral s-setae (s) and three basal short micro s-setae (bms). Ant. II with three bms and one latero-distal s, Ant. III with one bms and with five distal s (including one lateral), without additional s-setae. Common setae short. Sensillary formula as 43 / 22235 (s). Micro s-setae as 10 / 100 (ms). Tergal s-setae short and distinct. Medial s-setae on Th. II-III in front of p-row, on Abd. I-III in posterior position, between Md and Mdl. Abd. V with five s-setae arranged as three short (as, accp 1, accp 2), one lateral long and tubular, and one latero-ventral, short (' 3 + 1 + 1 ' pattern) (Fig. 82), accp 3 s-setae much longer than accp 2 (accp 2: accp 3 = 0.5 - 0.9). Macrosetae smooth and short, 2,2 / 3,3,3, medial ones on Abd. V shorter than dens, with the whole range of ratio Mac: dens as 0.6 - 1.1, and 1.9 - 3.1 times longer than mucro. Foil setae at the tip of abdomen absent. Thorax with 2 - 4 + 2 - 4 subequal setae at ventral line. Unguis of normal shape, without lateral and inner teeth. Empodial appendage usually longer than half of unguis (0.5 - 0.7). All tibiotarsi with additional setae: 23 - 27 setae on legs I-II and> 30 setae on leg III, as a whole. Upper and lower subcoxae of legs I-III with 0,1 / 5 - 7,8 - 12 / 7 - 9,8 - 10 setae, respectively. Coxae of leg I with two front setae. Ventral tube with 4 - 5 + 4 - 5 latero-distal and 6 - 7 posterior setae (with four in distal transversal row), anteriorly without setae. Tenaculum with 4 + 4 teeth and one or two setae. Anterior furcal subcoxae with 11 - 16, posterior one with four setae. Anterior side of manubrium with 2 + 2 setae (rarely 2 + 3 or 1 + 2). Posterior side of manubrium with 4 - 5 + 4 - 5 latero-basal, two apical setae (ap), 2 + 2 setae in distal transversal row, pair of lateral setae present or absent (see the Discussion part), and 4 - 5 (3 - 6) + 4 - 5 (3 - 6) in central part. Dens normally with 10 - 14 anterior setae (the whole range is 8 - 16). Posterior side of dens crenulated and with four setae: three (very rarely two) basal and one at the middle, no subapical setae. Mucro bidentate. Ratio of manubrium: dens: mucro = 3.1 - 4.9: 2.4 - 4.3: 1.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
E625075B561C0CAB1466E7E2E0AC00F7.taxon	distribution	Distribution and ecology. The species is widely distributed in the region (Fig. 90) and was listed in catalogues of Japanese Collembola (Yosii 1977; Furuno et al. 2000), often as its junior synonym F. ezoensis. Known from Osaka (Natuhara et al. 1994), Tokyo (Iwanami et al. 1980), Hokkaido (Yosii 1965, Suma 1997, Hishi et al. 2012), Shigayama (Tamura and Chiba 1977), Kyoto (Takeda 1995; Fujii and Takeda 2012), Aomori Pref. (Yamauchi and Suma 1999, 2009). For Russia, F. inoculata was recorded in Sakhalin (Kurcheva 1977; Solntseva and Molodova 1979), Ussuriyski Reserve and Kaimanovka (Kutyreva 1979, 1984, as F. ezoensis), Ussuriysk (Kutyreva 1988), and Kunashir Island (Potapov and Marusik 2000). In the revision of Folsomia of Russia the species was recorded in the Caucasus and the south of West Siberia (Martynova 1973). Distributional range of F. inoculata appears to be restricted to the Holarctic. In the Palearctic we still have not seen specimens from the eastern areas of East Siberia, such as Buryat Republic and Amurskaya District, despite intensive collections in appropriate sites. Thus, all populations can probably be divided to ' western' and ' eastern' which are inseparable by morphology for the present. In Scandinavia and the westernmost part of Europe F. inoculata is very rare and appears to be an alien species (absent, for example, in the Iberian Peninsula). In the Nearctic, the species is also infrequent although it occurs at least on the Pacific coast of USA (Oregon, Cascade Range, coll. A. Smolis, our identification, new record). Folsomia inoculata does not occur in the Arctic; the northernmost record is north-east corner of Komi Republic (67.50 ° N, NE European part of Russia) (Babenko et al. 2017). The species often occurs in forest litter while apparently preferring rotten wood where it can be very abundant. Folsomia inoculata is the most dendrophilous species of the ' inoculata ' group and, very likely, in the genus, having associated shape of body and crushing mouth parts. The species is also sporadically recorded in specific sites enriched by organic matter.	en	Potapov, Mikhail, Hasegawa, Motohiro, Kuznetsova, Natalia, Babenko, Anatoly, Kuprin, Alexander (2018): Isotomidae of Japan and the Asiatic part of Russia. I. Folsomia ' inoculata' group. ZooKeys 750: 1-40, DOI: http://dx.doi.org/10.3897/zookeys.750.22764, URL: http://dx.doi.org/10.3897/zookeys.750.22764
