Thereuonema tuberculata
Year: 2025
Type: other
Abstract: Thereuonema tuberculata (Wood, 1862) Figs 1–7 MATERIAL RE-EXAMINED (specimens previously identified as Scutigera coleoptrata by Nefediev et al., 2016). Russia (southwestern Siberia): Kemerovskaya oblast: Kemerovo, inside apartment, September 2000, 1 subad. ♂ (ASU.NPS.C-021), leg. D.A. Efimov; Altaiskii krai: Barnaul, “Edelveis” Park, 53.368810°N, 83.691650°E, h= 225 m, summer 2013, 1 ♀, 1 juv. (ASU.NPS.C-022); Barnaul, Vlasikha, under bricks, summer 2013; Barnaul, inside house, summer 2013, 2 ♂ (ASU.NPS.C-023); Barnaul, inside apartment, summer 2013, 4 ♂, 2 ♀, 1 juv. (ASU.NPS.C-024); Barnaul, JSC “Dekorativnye kultury”, seedling hothouse No. 10, 53.328869°N, 83.713061°E, h= 180 m, 26.XII 2014, 1 subad. ♂ (ASU.NPS.C-025), leg. V. M. Mamina; Barnaul, M.A. Lisavenko Research Institute for Horticulture of Siberia, heated hothouse, 53.291707°N, 83.765627°E, h= 210 m, 16. VI 2015, 3 juv. (ASU.NPS.C-026), leg. P.S. Nefediev; Barnaul, Altai State University, basement, 53.347410°N, 83.775620°E, March–April 2016, 1 subad. ♂ (ASU.NPS.C-027), leg. D.A. Durnikin; Barnaul, inside house, 24.IV 2016, 1 ♂, 1 subad. ♂ (ASU.NPS.C-028), leg. L.S. Snigiriova; Republic of Altai: Ust-Koksinskii District, Amur, 50.398955°N, 85.120657°E, h= 1065 m, old sawmill, 22.VII 2014, 1 ♀ (ASU.NPS.C-029), leg. A.A. Streltsova. NEW MATERIAL EXAMINED. Russia: Altaiskii krai: Barnaul, garages near Thermal Power Plant 3, 53.331982°N, 83.615154°E, h= 220 m, 12.VII 2004, 1 ♂ (ASU.NPS.C-010); Biysk, Sibenergosnab LLC, cucumber hothouse, 52.490442°N, 85.139664°E, sawdust, 16.III 2010, 1 juv. (ASU.NPS.C-011), all leg. P.S. Nefediev; environs of Barnaul, Barnaulka River valley, 14–20.VI 2016, 1 ♀ (ASU.NPS.C-012), leg. E. V. Guskova; Barnaul, Gogol Street, Plaza Shopping Centre, Germes LLC, in office, 53.330171°N, 83.781933°E, 16.VI 2016, 1♂ (ASU.NPS.C-013), leg. Yu.S. Nefedieva; Loktevskii District, Gornyak, 3.VII 2016, 1 ♀ (ASU.NPS.C-014); Novoaltaisk, 20.VII 2016, 1 juv. (ASU.NPS.C-015), all leg. T. Stepanova, E. Chekmeniova; Barnaul, Nikitina Street, Tigirek State Nature Reserve, basement, date unknown, 53.331347°N, 83.779219°E, 1 ♀ (ASU.NPS.C-016), collector unknown; Primorskii krai: Vladivostok, abandoned underground special facility of Local Air Defense No. 1, 43.116206°N, 131.889511°Е, 10.II 2021, 1 ♂ (ASU.NPS.C-017), leg. Sh. R. Abdullin; Krasnodarskii krai: Krymskii District, Krymsk, right bank of Adagum River, environs of N.I. Vavilov Krymsk Experimental Breeding Station, 44.907889°N, 37.990444°E, h= 30 m, 9.VIII 2020, 2 ♂ (ASU.NPS.C-020), leg. I. V. Enushchenko. Kazakhstan: Pavlodar oblast: Ekibastuz, private house, 1–2. V 2016, 2 ♂ (ASU.NPS.C-018); same locality, 30.VIII 2016, 1 ♀ (ASU.NPS.C-019), all leg. I.S. Koroliova. DISTRIBUTION. Being originally described as Cermatia tuberculata from Hong Kong, China (Wood, 1862), this species is mainly widespread in East Asia, namely China including Taiwan, South Korea including Jeju Island, and Japan (Würmli, 1975; Stoev & Geoffroy, 2004). Thereuonema tuberculata is also known to be introduced to the United Kingdom (Barber, 2011), and the United States of America (Ohio and Nebraska) (Reeves, 2017; Reeves & Miller, 2022). In Russia, this species has recently been recorded from the Primorskii krai, Russian Far East (Dyachkov, 2022, 2023, 2024a) (Fig. 3) and from the Republic of Khakassia, central Siberia (Nefediev & Farzalieva, 2024) (Fig. 1). REMARKS. A restudy of specimens from the Altaiskii krai, Kemerovskaya oblast and the Republic of Altai, previously identified as Scutigera coleoptrata by Nefediev et al. (2016), shows that all of them actually belong to T. tuberculata (Fig. 1). In that way, T. tuberculata is formally newly recorded from these three regions, as well as from the Krasnodarskii krai; and the latter record is new to Europe as a whole (Fig. 2). Meanwhile, Scutigera coleoptrata must be deleted from the Scutigeromorpha species list of Asian Russia. The above record of T. tuberculata from Kazakhstan is new to the fauna on this country (Fig. 1), replacing both S. coleoptrata and Thereuonema sp. (see Dyachkov, 2020, 2024b). The main diagnostic characters of T. tuberculata (basically according to Würmli, 1975, 2004) are as follows: pigmentation blue-green, head more heavily pigmented; absence of a pair of spine bristles at the distal end of all tarsi 1 (da1) (only a single or a pair of small spines (ts) presence caudolaterally at the middle and proximal annuli of tarsi 1); spiculae (sc) on the tergal plates parallel-sided; 50–80 bristles (b) associated with a spine (s) on tergite 6; some single bristles with paired spines (ps) at base (Figs 4–7). Nevertheless, some adult specimens from both the Krasnodarskii and Altaiskii krais, as well as from the Republic of Altai are characterized with 30–35 bristles associated with a spine on the sixth tergal plate. Obviously, the number of bristles associated with a spine on tergite 6 may vary from 30 to 80 (vs 50–80 ones in Würmli, 1975, 2004).
Author: Nefediev, P. S.
Language: English
Topic: Study of Mite Species
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W7078349238
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