Stigmatogaster sp.

Dyachkov, Yurii V., 2020, New data on the family Himantariidae Bollman, 1893 (Chilopoda: Geophilomorpha) from Kazakhstan, Ecologica Montenegrina 28, pp. 61-66 : 65

Stigmatogaster sp.

Figs 1 , 14–20 .

Material. South Kazakhstan Region: 1 ♂, 6 ♀ ( ZMMU Rc 7754), Karatau Mt Range, Aktas, in soil, 0–10 cm, 14. V.1974; 1 ♂, 1 ♀ ( ZMMU Rc 7756), Crataegus , Malus , wet forest, in soil, 0–10 cm, 12. V.1974; 1 ♂ ( ZMMU Rc 7793), vicinity of the Aksu-Zhabagly Nature Reserve, Taldy-Bulak Village, sample No. 1, 1973; 1 ♂, 2 ♀ ( ZMMU Rc 7762), M. Kayanda Village, meadow, Prangos , 18. VI.1972; 1 ♂ ( ZMMU Rc 7755), Almaty Region, Trans-Ili Alatau Mt Range, in litter, 1972; 1 ♂, 7 ♀♀, 1 fragm. ( ZMMU Rc 7751), East Kazakhstan Region, Urdzhar District, near Urdzhar Village, Tarbagatai Mt Range, bushes, Malus , Berberis , Rosa , 15. V.1981, MG, TP, VY.

Description. Labral median arc well-developed with 10 denticles ( Fig. 15 ). Maxillary complex ( Figs 16, 20 ): first maxillae with the telopodital lappets (arrow in Fig. 20 ); anterior margin of the second maxillae coxosternite concave backwards (arrow in Fig. 20 ). Forcipular tarsungula, when closed, not drawn beyond anterior margin of the head ( Fig. 14 ). Each metasternite from 1 to penultimate with a single transverse pore-field ( Fig. 17 ). Ultimate sternite wider than long, posterior margin concave backwards ( Fig. 18 ). Ventral coxopleural pores opening on the edge of ultimate sternite, dorsal coxal pores covered by lateral margin of tergite ( Fig. 19 ).

Distribution. Almaty (Trans-Ili Alatau Mt Range) and South Kazakhstan (vicinity of the Aksu-Zhabagly Nature Reserve and Karatau Mt Range) regions ( Titova 1965); East Kazakhstan Region (Tarbagatai Mt Range) (new).

Remarks. Titova (1965, 1978) reported on the "group of the similar species of the genus Stigmatogaster distributed from the southern borders of Tajikistan to the southern borders of Kazakhstan ". Material from the ZMMU is in poor condition, but its morphological characters correspond well to the Stigmatogaster Latzel, 1880 diagnosis ( Bonato 2011; Bonato et al. 2014).

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.