Polyporogaster porosa ( Sseliwanoff, 1881 )

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

Polyporogaster porosa ( Sseliwanoff, 1881)

Figs 1 , 8–13 .

Material. South Kazakhstan Region: 1 ♂, 2 ♀ ( ZMMU Rc 7752), near Arys Town , 24.IV–05. V.1988; 1 ♂ ( ZMMU Rc 7787), Kyzylkum desert, near Tabakbulak Village , under stones, N42°18'03.7", E67°34'45.1", 257 m a.s.l., 30.IV.2017 , coll. YD; 1 ♂, 3 ♀ ( ZMMU Rc 7788), Karatau Mt Range , 10 km SW Abay Village, steppe, grasses, Tulipa , under stones, N43°47'04.2", E68°46'42.0", 1029 m a.s.l., 06–07. V.2017, coll. YD; Almaty Region: 1 ♂ ( ZMMU Rc 7789), Dzungarian Alatau Mts , between Verkhnaya Taldy and Nizhnaya Taldy Rivers, stony mountain steppe, under stones, N44°25', E79°51', 1300 m a.s.l., 26– 28. VI.2016, coll. AF; 1 ♂ ( ZMMU Rc 7790), Ili River Valley , 40 km NNW Kapshagay City, loess slope on river bank, at night, N44°15', E76°54', 430 m a.s.l., 16.IV.2016 , coll. AF; Mangystau Region: 1 adult. ( ZMMU Rc 7819), eastern coast of Caspian Sea, between Sagandyk and Karmandy Capes , 13. V.19 66, coll. YK ; 1 ♀ ( ASU No 19), Western Chink of Ustyurt, near Bashzhira Mt , slope of chink, under stones, N43°22'42", E54°07'25", 150 m a.s.l., 15.IV.2018 , coll. AF; Kyzylorda Region, Aral District , Barsa-Kelmes (former island): 1 fragm. ( ZIN), flat bottom land, 06. V.1983, coll. DP; 1 ♀ ( ZIN), 1983, coll. DP .

Description. Body length 61–96 mm; males with 77, 79, 81, 83, 87 (each 1 specimen) leg-bearing segments, females with 79, 81, 83 (2, 3, 2 specimens, respectively) leg-bearing segments. Labral median arc well-developed, its surface divided in numerous denticles ( Fig. 9 ). Maxillary complex: telopodites of the first maxillae much longer than the small coxal projections; lappets of both coxosternite and telopodites absent. The second maxillae: coxosternite entire ( Fig. 10 ). Forcipular coxosternite without denticles, chitin-lines reaching the condyles. Forcipular tarsungula, when closed, not drawn beyond anterior margin of the head ( Fig. 8 ). Each metasternite from 1 to penultimate with a single transverse bean-shaped pore-field ( Fig. 11 ). Ultimate sternite pentagonal ( Fig. 12 ). Coxopleural pores (up to 6) opening inside a deep dorsal fossae, covered by lateral margin of trapeziform tergite (arrow in Fig. 13 ).

Distribution. Known from the Tashkent Region of Uzbekistan ( Sseliwanoff 1881; Lignau 1929a). Kazakhstan: South Kazakhstan, Almaty, Mangystau and Kyzylorda regions.

Remarks. The morphological characters correspond well to the descriptions by Sseliwanoff (1881) and Lignau (1929a). This species is new to the fauna of Kazakhstan.

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.