Schizoturanius dmitriewi ( Timotheew, 1897 )

Nefediev, P. S., 2019, New records of the millipede genus Schizoturanius Verhoeff, 1931 from Asian Russia (Diplopoda: Polydesmida: Polydesmidae), Russian Entomological Journal 28 (3), pp. 331-339 : 332-333

Schizoturanius dmitriewi ( Timotheew, 1897)

Figs 1 –2, 4, 6, 8.

non Turanodesmus dmitrievi (sic!) — Byzova, Chadaeva, 1965: 337. Schizoturanius clavatipes — Nefediev et al., 2017: 13; 2018: 228. Schizoturanius clavatipes pro parte — Nefediev,Nefedieva,2017:292. Schizoturanius dmitriewi — Nefediev, Nefedieva, 2018: 142; Krugova, Nefediev, 2018: 117.

MATERIAL EXAMINED. 1 ♀ ( ASU), Russia, Altai Province, Zmeinogorsk District, TSNR, Beloretsk site, right bank in mouth of Glukharikha River, left bank of Belaya River, 51°00,188 ' N, 82°45,812 ' E, upper part of W slope, chern taiga, 600 m a.s.l., p.t., 29. VI.2014; 2 ♀♀ ( ASU), same locality, p.t., 20–28.VIII.2014; 2 ♂♂ ( ASU), near s.l., 51°00 ' 13.65 ' N, 82°45 ' 46.16 '' E, W slope, chern taiga (mainly Abies sibirica ), ca. 545 m a.s.l., p.t., 13– 28.VIII.2015; 4 ♂♂, 1 ♀ ( ASU), near s.l., TSNR, buffer zone, 51.000014°N, 82.750219°E, lower part of W slope, ca. 560 m a.s.l., p.t., 3–9. VI.2014; 1 ♀ ( ASU), s.l., p.t., 20–28.VIII.2014; 1 ♂ ( ASU), near s.l., TSNR, Beloretsk site, 51°00,211 ' N, 82°45,815 ' E, upper and middle part of W slope, ca. 560 m a.s.l., p.t., 20– 28.VIII.2014; 1 ♀ ( ASU), same Province, Krasnoshchiokovo District, near Tigirek, TSNR, buffer zone, Mt Kozyr, 51°09,135 ' N, 83°01,196 ' E, upper part of steep NE slope, Larix sibirica stand in Larix sibirica and Betula pendula forest, 650 m a.s.l., p.t., 29.VIII.– 8.IX.2014; 1 ♀ ( ASU), same Province and District, near Tigirek, TSNR, buffer zone, right bank of Malyi Tigirek River behind ford, valley bottom, 51°08,751 ' N, 83°02,567 ' E, valley Betula pendula forest, 480 m a.s.l., p.t., 29.VIII–8.IX.2014; 1 juv. ( ASU), same Province and District, near Tigirek, TSNR, Khankhara site, left bank of Dragunskii Brook, 51°11,502 ' N, 82°58,778 ' E, middle part of S slope, rich herbaceous meadow with Poaceae , ca. 910 m a.s.l., p.t., 20–30. VI.2015; 1 ♀ ( ASU), near s.l., 51°11,030 ' N; 82°58,467 ' E, lower part of slope, tall grasses, ca. 800 m a.s.l., p.t., 15–25.VIII.2015; 1 ♀ ( ASU), near s.l., 51°11,306 ' N; 82°58,569 ' E, middle part of slope, rich herbaceous steppe with Carex , Festuca and bushes, ca. 910 m a.s.l., p.t., 15–25.VIII.2015; 2 ♀♀ ( ASU), near s.l., 51°11,229 ' N; 82°58,546 ' E, middle part of slope, meadow steppe with bushes, ca. 875 m a.s.l., p.t., 15–25.VIII.2015, all leg. T.K.; 2 ♂♂, 1 ♀, 1 juv. ( ASU), near s.l., TSNR, buffer zone, 51°11 ' 01.11 '' N, 82°58 ' 29.57 '' E, tall grasses meadow, bottom of broad gully, 800 m a.s.l., s.s., 16–17.VIII.2016, leg. T.K., L.Yu. Gruntova, V. V. Zelenskii, K. V. Smirnova, A.E. Pupkova, M.N. Terioshkina, R. V. Shcherbakova; 2 ♂♂, 6 juv. ( ASU), near s.l., SW steppe slope with Rosa spinosissima , h.s., 17.VIII.2016; 1 ♂, 1 juv. ( ASU), near s.l., Betula pendula stand with Lonicera and Rosa spinosissima , h.s., 17.VIII.2016; 1 ♀ ( ASU), near s.l., 51.192035°N, 82.953123°E, Betula pendula and Larix sibirica forest, 850 m a.s.l., h.s., 18.VIII.2016, leg. P.N.; 1 ♂, 1 juv. ( ASU), same Province, Charyshskoye District, left bank of Inya River, near Kamyshenka (abandoned), 51°07 ' 04.1 '' N, 83°06 ' 51.8 '' E, chern taiga, 555 m a.s.l., p.t., 18. VI –3.VII.2016; 1 ♂, 1 ♀, 4 juv. ( ASU), s.l., p.t., 11.VII–3.IX.2016; 1 ♀, 2 juv. ( ASU), near s.l., 51°07 ' 00.4 '' N, 83°06 ' 55.8 '' E, chern taiga, 585 m a.s.l., p.t., 11.VII–3.IX.2016, all leg. T.K; 1 ♂ ( ASU), same Province and District, ca. 4.5 km SE of Charyshskoye, 51°21 ' 33.8 '' N, 83°37 ' 23.2 '' E, Betula pendula and Populus tremula stand on N slope, ca. 520 m a.s.l., 5. VI.2018; 4 juv. ( ASU), near s.l., site 1 on S slope, 51°21 ' 20.3 '' N, 83°37 ' 36.5 '' E, s.s. 1 (0–10 cm deep), 480 m a.s.l., 8. VI.2018; 1 juv. ( ASU), s.l., s.s. 1 (10–20 cm deep), 8. VI.2018; 4 juv. ( ASU), s.l., s.s. 3 (0–10 cm deep), 8. VI.2018; 7 juv. ( ASU), s.l., s.s. 5 (0–10 cm deep), 8. VI.2018; 2 juv. ( ASU), s.l., s.s. 5 (10–20 cm deep), 8. VI.2018, all leg. Kh.N., S.N., V.S.; 9 juv. ( ASU), s.l., s.s. 3 (0–10 cm deep), 14.VII.2018; 1 juv. ( ASU), near s.l., site 2 on S slope, 51°21 ' 14.5 '' N, 83°38 ' 03.8 '' E, s.s. 3 (0–10 cm deep), 530 m a.s.l., 13.VII.2018; 1 juv. ( ASU), near s.l., site 1 on N slope, 51°21 ' 44.3 '' N, 83°37 ' 42.6 '' E, s.s. 3 (0–10 cm deep), 620 m a.s.l., 12.VII.2018; 1 juv. ( ASU), near s.l., site 2 on N slope, 51°21 ' 38.0 '' N, 83°38 ' 02.7 '' E, s.s. 5 (0–10 cm deep), 630 m a.s.l., 12.VII.2018; 4 ♂♂, 3 ♀♀, 1 juv. ( ASU), near s.l., site 1 on S slope, 51°21 ' 20.3 '' N, 83°37 ' 36.5 '' E, s.s. 1 (0–10 cm deep), 480 m a.s.l., 6.IX.2018; 1 ♂ ( ASU), s.l., s.s. 1 (10–20 cm deep), 6.IX.2018; 1 ♂, 4 ♀♀ ( ASU), s.l., s.s. 3 (0–10 cm deep), 6.IX.2018; 1 ♂, 2 ♀♀ ( ASU), s.l., s.s. 5 (0–10 cm deep), 6.IX.2018; 1 ♂ ( ASU), near s.l., site 1 on N slope, 51°21 ' 44.3 '' N, 83°37 ' 42.6 '' E, s.s. 1 (0–10 cm deep), 620 m a.s.l., 7.IX.2018; 2 ♂♂, 1 ♀ ( ASU), s.l., s.s. 2 (0–10 cm deep), 7.IX.2018; 1 ♂ ( ASU), s.l., s.s. 4 (0–10 cm deep), 7.IX.2018, all leg. Kh.N.; 3 ♂♂ ( ASU), Russia, Republic of Altai, Ust-Koksa District, 0.5 km W of Ust-Koksa, near main building of Katun State Nature Reserve, 50°16 ' 27.74 '' N, 85°35 ' 29.21 '' E, Betula pendula forest with Poaceae , in litter and under stones, 980 m a.s.l., 14– 15.VIII.2016, leg. Yu.D.

MATERIAL RE-EXAMINED (specimens recorded by Nefediev, Nefedieva [2017] and Nefediev et al.[2017, 2018]). 1 ♂, 2 ♀♀, 1 fragm. ( ASU), Russia, Altai Province, Krasnoshchiokovo District, near Tigirek, TSNR, Khankhara site, 51°11.569 ' N, 82°58.740 ' E, Larix sibirica forest, 4-year old fire-site, upper part on S slope, left bank of Dragunskii Brook, p.t., 23. V –1. VI.2012; 2 ♂♂ ( ASU), same Province, Zmeinogorsk District, TSNR, Beloretsk site, 51°00.277 ' N, 82°45.830 ' E, dead-surface Abies sibirica forest (chern taiga), upper part on N slope, 537 m a.s.l., p.t., 28. V. 5. VI.2013, all leg. T.K.; 10 juv. ( ASU), same Province, Krasnoshchiokovo District, ca. 0.75 km E of Tigirek, buffer zone of TSNR, 51°08.613 ' N, 83°02.725 ' E, Betula forest , 503 m a.s.l., p.t., 1.VII–6.VII.2013; 2 ♂♂, 3 ♀♀, 33 juv., 2 fragm. ( ASU), s.l., s.s., 4.VII.2013, all leg. Yu.D.; 2 juv. ( ASU), same Province, Charyshskoye District, ca. 4.5 km SE of Charyshskoye, environs of ASU Field Station “Goluboi Utios”, 51°21 ' 33.8 '' N, 83°37 ' 23.2 '' E, Betula pendula and Populus tremula stand on N slope, ca. 520 m a.s.l., 14.VII.2015, leg. P.N.; 4 juv. ( ASU), near s.l., site 1 on S slope, 51°21 ' 20.3 '' N, 83°37 ' 36.5 '' E, s.s. 3 (0–10 cm deep), 480 m a.s.l., 1. VI.2016; 2 ♀♀, 9 juv. ( ASU), s.l., s.s. 4 (0–10 cm deep), 1. VI.2016; 1 juv. ( ASU), s.l., s.s. 5 (0–10 cm deep), 1. VI.2016; 2 ♂♂, 1 ♀, 2 juv. ( ASU), near s.l., foot of S slope of mountain, 51.354745°N, 83.626265°E, Padus avium and Populus tremula stand near Pikhtovka River, h.s., 495 m a.s.l., 1. VI.2016; 2 ♂♂, 2 ♀♀ ( ASU), near s.l., site 1 on N slope, 51°21 ' 44.3 '' N, 83°37 ' 42.6 '' E, h.s., 620 m a.s.l., 2. VI.2016, all leg. P.N., Kh.N., S.N., V.S.; 2 juv. ( ASU), near s.l., site 1 on S slope, 51°21 ' 20.3 '' N, 83°37 ' 36.5 '' E, s.s. 1 (0–10 cm deep), 480 m a.s.l., 12.VII.2016; 1 juv. ( ASU), s.l., s.s. 3 (0–10 cm deep), 12.VII.2016; 3 juv. ( ASU), s.l., s.s. 3 (10–20 cm deep), 12.VII.2016; 2 juv. ( ASU), s.l., s.s. 5 (0–10 cm deep), 12.VII.2016; 1 juv. ( ASU), near s.l., site 1 on N slope, 51°21 ' 44.3 '' N, 83°37 ' 42.6 '' E, s.s. 1 (0–10 cm deep), 620 m a.s.l., 13.VII.2016; 1 juv. ( ASU), s.l., h.s., 13.VII.2016; 1 juv. ( ASU), near s.l., site 2 on N slope, 51°21 ' 38.0 '' N, 83°38 ' 02.7 '' E, s.s. 3 (0–10 cm deep), 630 m a.s.l., 13.VII.2016; 1 juv. ( ASU), near s.l., environs of Komendantka, 51.344018°N, 83.593782°E, h.s., 485 m a.s.l., 14.VII.2016, all leg. Kh.N., S.N., V.S.; 1 ♂ ( ASU), near s.l., site 1 on S slope, 51°21 ' 20.3 '' N, 83°37 ' 36.5 '' E, s.s. 2 (10–20 cm deep), 480 m a.s.l., 22.VIII.2016; 1♂ ( ASU), s.l., s.s. 4(0–10 cm deep), 23.VIII.2016; 1 ♂, 1 ♀ ( ZMMU), 1 ♀ ( ASU), s.l., s.s. 5 (0–10 cm deep), 23.VIII.2016; 1 ♂ ( ASU), near s.l., site 2 on S slope, 51°21 ' 14.5 '' N, 83°38 ' 03.8 '' E, s.s. 2 (0–10 cm deep), 530 m a.s.l., 22.VIII.2016; 1 juv. ( ASU), s.l., s.s. 4 (0–10 cm deep), 22.VIII.2016; 1 ♂ ( ASU), near s.l., site 2 on N slope, 51°21 ' 38.0 '' N, 83°38 ' 02.7 '' E, s.s. 2 (0–10 cm deep), 630 m a.s.l., 23.VIII.2016; 1 ♀ ( ASU), s.l., s.s. 4 (litter), 23.VIII.2016, all leg. P.N., Kh.N., S.N., V.S.

MATERIAL RE-EXAMINED. 7 ♂♂, 7 ♀♀ ( ZMUM, Rd 1523), Russia, Voronezh Area, Voronezh Nature Reserve , Alnus forest, site 509, 20.IX.1988, leg. V. Emets .

DISTRIBUTION. Until recently, this species was considered to be endemic to the Russian Plain (see above and Zalesskaja et al. [1982]), with the distribution area covering the territory of central and eastern Ukraine and the adjacent regions of Russia east of Ukraine, and further north up to the southern parts of the Moscow Area [ Evsyukov, Golovatch, 2013]. Recently, however, this species has been recorded from the Russian Altais generally [ Nefediev, Nefedieva, 2018] and from the Tigirek State Nature Reserve in particular [ Krugova, Nefediev, 2018], but without precise faunistic data presented ( Fig. 1 ).

REMARKS. Originally described in a new genus, Trachynotus [ Timotheew, 1897], this species was later transferred to Schizoturanius [ Lohmander, 1933], because the name Trachynotus had been preoccupied. A restudy of the specimens from the south of the Altai Province previously determined by Nefediev, Nefedieva [2017] and Nefediev et al. [2017, 2018] as Schizoturanius clavatipes (Stuxberg, 1876) shows that they actually belong to S. dmitriewi .

The species Schizoturanius dmitriewi is very similar to S. clavatipes , but differs from it and other species of the genus mainly in the absence of a small triangular blade at the inner edge of the middle part of the gonopod exomere (ex) (Figs 4– 5), as well as the serrate/denticulate outer edge of the gonop- od endomere (en) (Figs 6–9), in which the distal part is directed caudad, shortened and swollen ventrally, and it carries a well-developed, long and thin process (p) near the pad/pulvillus (Figs 2–3).

Schizoturanius dmitriewi sometimes occur syntopically with S. tabescens (Stuxberg, 1876) ( Figs 1 , 12 ), but the former species is easily distinguished from the latter by the larger body (adults 912 vs. 79 mm long, respectively) and coloration (pinkish beige vs. milky white, respectively). At the same time, S. dmitriewi is quite similar to S. clavatipes in habitus, as well as in gonopodal structure, but they never live together, being allopatric.

Figures

Fig. 1. Distribution of Schizoturanius species: dmitriewi in Asian Russia (black circle) and clavatipes (white circle). Рис. 1. Распространение видов Schizoturanius: dmitriewi в аЗиатской части России (черный круг) и clavatipes (белый круг).

Fig. 12. Distribution of Schizoturanius tabescens. Рис. 12. Распространение Schizoturanius tabescens.