Bothriogaster signata ( Kessler, 1874 )

Dyachkov, Yurii V., 2020, New data on the family Himantariidae Bollman, 1893 (Chilopoda: Geophilomorpha) from Kazakhstan, Ecologica Montenegrina 28, pp. 61-66 : 62-63

Bothriogaster signata ( Kessler, 1874)

Figs 1–7 .

Material. South Kazakhstan Region, Karatau Mt Range : 14 ♂, 5 ♀ ( ASU No 77), 10 km SW Abay Village, Karatau State Nature Reserve , grasses and tulip steppe, under stones, N43°47'04.2", E68°46'42.0", 1020 m a.s.l., 06–07. V.2017, coll. YD; 2 ♂, 4 ♀ ( HNHM chilo-7677), Syrdarya-Turkestan Natural Park, near Terekty Village, bottom-land of Boralday River , under stones, N42°51'48.2", E69°51'55.0", 529 m a.s.l., 14–15. V.2017, coll. YD; 1 ♂, 2 ♀ ( PSU), 7 km NE Boralday , 11–13. V.2010, KT; 2 ♂, 1 ♀, 2 juv. ( PSU), Talap Pass, Betula , 05. V.2010, coll. AI; 1 ♀ ( PSU), Besaryk River bank, N43°49'34.5", E67°51'26.7", 446 m a.s.l., 05. V.2010, coll. AI; 1 ♀ ( HNHM chilo-7675), 64 km SW Arys Town, Beltau Mts , steppe, under stones, N41°50'09.9", E68°32'15.4", 392 m a.s.l., 08–09. VI.2017, coll. YD; 1 ♂, 1 ♀, 1 juv. ( HNHM chilo-7678), steppe, grasses, under stones, N41°50'28.5", E68°32'30.3", 392 m a.s.l., 12– 13. V.2017, coll. YD; 2 ♂, 5 ♀, 1 juv. ( ZMMU Rc 7725), near Arys Town , Artemisia steppe, in fissures, 24.IV–05. V.1988, coll. DL; 1 ♂, 3 ♀, 1 juv. ( HNHM chilo-7676), 50 km NW Achisay Village, Kyzylkol Lake shore, in loam stones, N43°46'34.0", E69°30'36.4", 328 m a.s.l., 08–09. V.2017, coll. YD; 1 ♀ ( ZMMU Rc 7726), same Region, near Dzhilga Village , chalky quarry, under stones, coll. DL ; 3 ♂, 5 ♀ ( ASU No 78) , Almaty Region, Jambyl District, 15 km NNW Karabastau Village, Tyrnakty , stony mountain steppe, under stones, N43°53', E75°30', 850–950 m a.s.l., 20–22.IV.2016 , coll. AF.

Description. Body length 70–145 mm; males with 113–115 leg-bearing segments, females with 111, 119–125, 129–131 ones. Labrum ( Fig. 3 ) has numerous small denticles. Maxillary complex: telopodites of the first maxillae longer than the coxal projections; lappets of both coxosternite and telopodites absent. The second maxillae: coxosternite entire, its anterior margin slightly convex in the middle (arrow in Fig. 4 ). Forcipular coxosternite without denticles, chitin-lines reaching the condyles. Tarsungula, when closed, not reaching the anterior margin of the head ( Fig. 2 ). Metasternites have pore-fields, large in anterior part of body and smaller in posterior part; two penultimate metasternites also have large pore-fields. Well-developed sternobothria accompanied by lateral gutters ( Fig. 5 ) located mostly on 37–47 metasternites in male and on 40–53 metasternites in female. Ultimate metasternite wide, trapeziform with central longitudinal depression ( Fig. 6 ). Coxal pores opening on ventral and dorsal sides in 2 groups ( Figs 6, 7 ). Ultimate legs without pretarsus, swollen in male.

Distribution. Balkan Peninsula, Cyprus, N Africa, Russia (Volgograd Region), Western Asia, Central Asia ( Turkmenistan, Uzbekistan, Tajikistan, Kazakhstan) ( Kessler 1874; Sseliwanoff 1881; Attems 1904; Lignau 1929a; Verhoeff 1930; Zapparoli 1991; Stoev 2000; Volkova 2016). Kazakhstan: Almaty (« Almaty ») ( Dobroruka 1979) and South Kazakhstan regions (new).

Remarks. The specimens studied agree well with the descriptions by Kessler (1874), Attems (1929), Lignau (1929a), Chalande and Ribaut (1909). This species is new to the fauna of the South Kazakhstan Region.

Figures

Figure 1. Distribution of the Himantariidae members in Kazakhstan: square – Bothriogaster signata; star – Polyporogaster porosa; triangle – Polyporogaster schnitnikowi; oval – Stigmatogaster sp. White marks indicate new data, black marks concern literature data.

Figures 2–21. Bothriogaster signata (Kessler, 1874): 2 – head and first segment, ventral view; 3 – cephalic plate, ventral view; 4 – maxillary complex, ventral view; 5 – some anterior sternites, ventral view; 6 – terminal part of body (male), ventral view; 7 – same, dorsal view; Polyporogaster porosa (Sseliwanoff, 1881): 8 – head and two anterior segments, ventral view; 9 – labrum, ventral view; 10 – maxillary complex, ventral view; 11 – some anterior sternites, ventral view; 12 – terminal part of body (male), ventral view; 13 – same, dorsal view; Stigmatogaster sp.: 14 – head and two anterior segments, ventral view; 15 – labrum, ventral view; 16 – maxillary complex, ventral view; 20 – same, schematic draw, ventral view; 17 – some anterior sternites, ventral view; 18 – terminal part of body (female), ventral view; 19 – same, dorsal view; Polyporogaster schnitnikowi Lignau, 1929 (after (Lignau 1929b)): 21 – labrum, ventral view. Scale: 1–14 – 0.2 mm, 15–20 – 0.1 mm; 21 – without scale.