taxonID	type	description	language	source
BA4C87EFFF944919FF60378F54C41883.taxon	materials_examined	Type species: Drassus shumakovi Spassky, 1934 from Kalmykia (Russia).	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF944919FF60378F54C41883.taxon	diagnosis	Diagnosis. The genus is most similar to Drassodes Westring, 1851 in having straight and pointed RTA, oval tegulum with well visible sinusoidal sperm duct, thick and straight embolus and membranous conductor in males and dual receptacles in females. The males of Sidydrassus can be distinguished from those of Drassodes by the thick embolus and the large median apophysis (vs. filamentous embolus and small median apophysis in Drassodes). The females of Sidydrassus differ from those of Drassodes in having cross-inclined epigynal fovea (vs. rounded in Drassodes). The males of Sidydrassus are also similar to those of Talanites Simon, 1893 in having non filamentous embolus and large median apophysis, but can be separated from it by having long and straight RTA (vs. short and curved in Talanites), medially situated embolus (vs. prolaterally situated embolus in the type species, T. fervidus Simon, 1893) and elongated distal part of the cymbium (vs. short and rounded in Talanites).	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF944919FF60378F54C41883.taxon	description	Description. Total length: male 6.9 – 10.5, female 7.8 – 11.0. Carapace length: male 3.1 – 4.6, female 3.5 – 4.0; width: male 2.15 – 3.1; female 2.45 – 2.9. Carapace yellow-brown or light brown. Sternum yellow-brown to yellow. Chelicerae brown. Legs yellow to yellow-brown. Abdomen beige or cream-coloured. Spinnerets yellow or yellowbeige. Chelicera with three promarginal teeth (Figs 7 – 12). Male palp. Femur 2 – 2.5 times longer than patella. Patella slightly shorter than tibia. Retrolateral tibial apophysis as long as tibia or 2 – 4 times shorter. Cymbium drop-shaped, longer than tibia. Tibia and cymbium bear several strong spines. Tegulum 1.5 – 1.8 times longer than wide. Sperm duct C-shaped or sinusoidal. Median apophysis well-developed. Conductor membranous, translucent. Embolic base thick. Embolus short, with a slightly curved tip. Epigyne. Fovea cross-inclined, slit-shaped or wide and round. Median plate in form of an inverted triangle or pentagonal. Receptacles dual: the anterior one spherical, the posterior one flattened. Composition. Sidydrassus rogue, S. saiynovi sp. n., S. shumakovi and S. tianschanicus.	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF944919FF60378F54C41883.taxon	distribution	Distribution. The southern part of Russian Plain, the Caucasus, Iran and Central Asia.	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF94491CFF60334854791F1A.taxon	description	Figs 1, 7, 13 – 15, 19 – 21, 44	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF94491CFF60334854791F1A.taxon	materials_examined	Type. KAZAKHSTAN: Mangystau Oblast: holotype ♂ (ISEA, 001.8936), Ustyurt Nature Reserve, Mamekkazgan Guard Post, near Karazhar Well, 43 ° 24 ’ 52 ” N, 54 ° 33 ’ 48 ” E, takyr, 70 m, 12 – 14.04.2018, A. A. Fomichev.	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF94491CFF60334854791F1A.taxon	etymology	Etymology. The specific name is a patronym honouring Mr Berik Saiynov (Zhanaozen, Kazakhstan), a research fellow from the Ustyurt Nature Reserve, who helped the author to organize an expedition to Ustyurt Plateau, during which this new species was collected.	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF94491CFF60334854791F1A.taxon	diagnosis	Diagnosis. In having the large median apophysis (Ma) without a prolateral bent branch, the male of the new species resembles that of S. tianschanicus, from which it differs in having the RTA of the same length as tibia (vs. twice shorter in S. tianschanicus), the embolus (Em) bent prolaterad (vs. straight in S. tianschanicus) and the median apophysis twice as short as the embolus (vs. equal to it in S. tianschanicus) (cf. Figs 13 – 15, 20 and 16 – 18, 23).	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF94491CFF60334854791F1A.taxon	description	Description. Male. Total length 7.8. Carapace: 3.55 long, 2.45 wide. Colouration. Carapace and sternum yellow-brown. Labium, endites and chelicerae brown. Coxae pale yellow. Legs pale yellow. Palps pale yellow, cymbium brown. Abdomen beige, ventrally lighter. Spinnerets pale yellow. Leg measurements: I: 3.15, 1.65, 2.8, 2.45, 1.7 (11.75). II: 2.95, 1.4, 2.65, 2.35, 1.65 (11.0). III: 2.85, 1.3, 2.25, 2.4, 1.65 (10.45). IV: 3.6, 1.5, 3.0, 3.7, 1.85 (13.65). Leg spination: I: Fe d 1 - 1 - 0 p 0 - 1 - 1; Ti v 1 - 2 - 0; Mt v 2 - 0 - 0. II: Fe d 1 - 1 - 0 p 0 - 1 - 2; Ti v 0 - 2 - 0; Mt v 3 - 0 - 0. III: Fe d 1 - 1 - 1 p 0 - 1 - 1 r 0 - 1 - 1; Ti d 1 - 0 - 0 p 2 - 0 - 1 r 1 - 0 - 1 v 2 - 2 - 2; Mt d 1 - 2 - 0 p 1 - 1 - 0 r 1 - 1 - 0 v 2 - 2 - 0. IV: Fe d 1 - 1 - 1 p 0 - 1 - 1 r 0 - 1 - 1; Ti d 1 - 0 - 1 p 1 - 1 - 1 r 2 - 0 - 1 v 2 - 2 - 2; Mt d 1 - 2 - 0 p 1 - 1 - 0 r 1 - 1 - 0 v 2 - 0 - 2. Palp as in Figs 13 – 15, 19 – 21. Tegulum (Te) 1.8 times longer than wide. Sperm duct (Sd) clearly visible in ventral view. Median apophysis (Ma) slightly bent prolaterad. Membrane of median apophysis (Mm) well developed. Triangular membrane between embolus and median apophysis reduced. Conductor (Cn) originates at a 11 o’clock position. Embolus (Em) twice as long as median apophysis, with a thick base (Eb) and prolaterally curved apex. Female unknown.	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF94491CFF60334854791F1A.taxon	distribution	Distribution. Known only from the type locality in Ustyurt Plateau (Fig. 44).	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF91491DFF6037A454591D82.taxon	description	Figs 2, 8, 16 – 18, 22 – 24, 42 – 44	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF91491DFF6037A454591D82.taxon	materials_examined	Material examined. KAZAKHSTAN: Almaty Oblast: 3 ♂ (ISEA, 001.8937), Ili River valley (right side), c. 40 km NNW from Kaptshagai Town, 44 ° 15 ’ N, 76 ° 54 ’ E, loess cliff on river bank, 430 m, 16.04.2016, A. A. Fomichev; 1 ♂ (ISEA, 001.8938), 1 ♂ (ISEA, 001.8939) same locality and date, without precise data on habitat, R. Y. Dudko.	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF91491DFF6037A454591D82.taxon	diagnosis	Diagnosis. In having a large median apophysis (Ma) without a prolateral bent branch, the male of S. tianschanicus is similar to that of S. saiynovi sp. n., from which it can be distinguished by the RTA twice shorter than tibia (vs. equal length in S. saiynovi sp. n.), the straight embolus (Em) (vs. bent prolaterad in S. saiynovi sp. n.) and the median apophysis (Ma) of almost the same length as the embolus (vs. twice shorter in S. saiynovi sp. n.) (cf. Figs 16 – 18, 23 and 13 – 15, 20). In having a wide and round epigynal fovea (Fo) and the simple posterior receptacles (Pr) without pronounced heads, the female of S. tianschanicus is very similar to that of S. rogue but differs in the epigynal proportions: the epigynal fovea of S. tianschanicus is 2.1 times longer than wide (vs. 1.7 times longer in S. saiynovi sp. n.) and the anterior (Ar) and posterior receptacles (Pr) are equal in size (vs. the anterior receptacles significantly larger than the posterior ones in S. rogue sp. n.) (cf. Figs 42 – 43 and 40 – 41).	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF91491DFF6037A454591D82.taxon	description	Description. Male. Total length 10.5. Carapace: 4.6 long, 3.1 wide. Colouration. Carapace light brown, darker anteriorly. Chelicerae dark brown. Endites and labium brown. Sternum and coxae yellow-brown. Palps and legs yellow-brown, darker distally. Abdomen cream-coloured. Spinnerets light yellow. Leg measurements: I: 4.05, 2.2, 3.85, 3.25, 2.0 (15.35). II: 3.6, 2.0, 3.0, 2.7, 1.9 (13.2). III: 3.3, 1.65, 2.45, 2.6, 1.7 (11.7). IV: 4.25, 1.9, 3.3, 4.15, 1.9 (15.5). Leg spination: I: Fe d 1 - 1 - 0 p 0 - 1 - 1; Ti p 1 - 0 - 0 v 1 - 2 - 0; Mt v 2 - 0 - 0. II: Fe d 1 - 1 - 0 p 0 - 1 - 2; Ti p 1 - 0 - 1 v 0 - 2 - 0; Mt v 2 - 0 - 0. III: Fe d 1 - 1 - 1 p 0 - 1 - 1 r 0 - 2 - 1; Ti d 1 - 0 - 0 p 1 - 1 - 1 r 0 - 1 - 1 v 1 - 2 - 2; Mt d 0 - 1 - 0 p 1 - 1 - 0 r 1 - 0 - 0 v 2 - 1 - 0. IV: Fe d 1 - 1 - 1 p 0 - 1 - 1 r 0 - 1 - 1; Ti d 1 - 0 - 1 p 1 - 1 - 1 r 1 - 1 - 1 v 2 - 2 - 2; Mt d 1 - 2 - 0 p 1 - 1 - 0 r 1 - 1 - 0 v 2 - 2 - 0. Palp as in Figs 16 – 18, 22 – 24. Tegulum (Te) 1.6 times longer than wide. Sperm duct (Sd) poorly visible in ventral view. Median apophysis (Ma) strongly bent prolaterad. Membrane of median apophysis (Mm) reduced. Triangular membrane (Tm) between embolus and median apophysis well-developed, elongated. Conductor (Cn) originates at a 12 o’clock position. Embolus (Em) slightly longer than median apophysis, with a thick base (Eb) and almost straight apex. Epigyne as in Figs 42 – 43. Fovea (Fo) cross-inclined, with very thin lateral margins. Median plate (Mp) inverted triangle-shaped. Anterior receptacles (Ar) diverging, separated by 0.75 times of their diameter. Posterior receptacles (Pr) ovoid, without pronounced heads.	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF91491DFF6037A454591D82.taxon	distribution	Distribution. The species was described from Xinjiang Province of China (Hu & Wu 1989). It was earlier reported from Kazakhstan by Logunov et al. (2012), who provided no details on the material studied or the locality. A new record from Almaty Oblast of Kazakhstan confirms that this species indeed occurs in this country (Fig. 44). This species appears to have one of the widest ranges in the genus. Only the generotype has a larger range.	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF91491DFF6037A454591D82.taxon	discussion	Comments. Tuneva (2004) pointed out the RTA is markedly shorter in S. tianschanicus in comparison to that of congeners, suspecting that it was just broken in the type specimen. Indeed, the newly collected males from Kazakhstan have a long RTA, similar to all other known members of the genus.	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF924911FF60359652701C66.taxon	description	Figs 3 – 4, 9 – 10, 25 – 30, 37 – 39, 44	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF924911FF60359652701C66.taxon	materials_examined	Material examined. KAZAKHSTAN: Almaty Oblast: 1 ♂ (ISEA, 001.8940), 11 km SSE from Topar Village, Kosshar Natural Boundary, 44 ° 56 ’ N, 75 ° 04 ’ E, sandy semidesert, 360 m, 23 – 24.04.2016, A. A. Fomichev; 1 ♀ (ISEA, 001.8941), 1 ♀ (ISEA, 001.8942), Malaisary Mt. Range, 44 ° 17 ’ N, 76 ° 52 ’ E, mountain stony steppe with rocks, 550 – 650 m, 17.04.2016, A. A. Fomichev.	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF924911FF60359652701C66.taxon	diagnosis	Diagnosis. The male of this species differs from all the congeners in having a prolaterally bent branch of the median apophysis (Lb). In addition, it differs in the proportions of the embolic base (Eb), which is twice thicker than the median apophysis (Ma) in ventral view (vs. equal in its thickness in others species) (cf. Figs 25, 29 and Figs 13, 16, 20, 23, 31, 35). The female of S. shumakovi differs from those of all the congeners in having a slit-shaped epigynal fovea (Fo), not contiguous with the epigastric furrow (vs. wide and round, contiguous with the epigastric furrow in S. tianschanicus and S. rogue) and the posterior receptacles (Pr) with pronounced heads (Rh) (cf. Figs 37 – 39 and 40 – 43).	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF924911FF60359652701C66.taxon	description	Description. Male. Total length 6.9. Carapace: 3.1 long, 2.15 wide. Colouration. Carapace yellow-brown. Chelicerae, labium and endites light brown. Sternum yellow. Coxae and legs pale yellow. Palps yellow, cymbium light brown. Abdomen and spinnerets yellow-beige. Leg measurements: I: 2.85, 1.4, 2.55, 2.15, 1.5 (10.45). II: 2.55, 1.3, 2.1, 1.9, 1.4 (9.25). III: 2.35, 1.1, 1.75, 1.9, 1.3 (8.4). IV: 3.15, 1.3, 2.55, 3.1, 1.4 (11.5). Leg spination: I: Fe d 1 - 0 - 1 p 0 - 0 - 1; Ti v 1 - 2 - 0; Mt v 2 - 0 - 0. II: Fe d 1 - 0 - 1 p 0 - 1 - 1; Ti v 0 - 1 - 0; Mt v 2 - 0 - 0. III: Fe d 1 - 1 - 1 p 0 - 1 - 1 r 0 - 1 - 1; Ti d 1 - 0 - 0 p 1 - 1 - 1 r 0 - 1 - 1 v 1 - 1 - 2; Mt d 1 - 2 - 0 p 1 - 1 - 0 r 1 - 1 - 0 v 2 - 2 - 0. IV: Fe d 1 - 1 - 1 p 0 - 1 - 1 r 0 - 1 - 1; Ti d 1 - 0 - 1 p 1 - 1 - 1 r 1 - 1 - 1 v 2 - 2 - 2; Mt d 1 - 2 - 0 p 1 - 1 - 0 r 1 - 1 - 0 v 2 - 2 - 0. Palp as in Figs 25 – 30. Retrolateral tibial apophysis slightly shorter than tibia. Tegulum (Te) 1.5 times longer than wide. Sperm duct (Sd) clearly visible in ventral view. Median apophysis (Ma) with a robust prolateral branch (Lb). Membrane of median apophysis (Mm) well-developed. Triangular membrane (Tm) between embolus and median apophysis well-developed. Conductor (Cn) originates at a 12 o’clock position. Embolus (Em) slightly longer than median apophysis, bent prolaterad. Female. Total length 11.0. Carapace: 4.0 long, 2.9 wide. Colouration. Carapace yellow-brown. Chelicerae light brown. Labium, endites and sternum yellow-brown. Coxae yellow. Palps yellow, darker distally. Legs yellow. Abdomen yellow-beige. Spinnerets yellow. Leg measurements: I: 3.05, 1.75, 2.65, 2.25, 1.6 (11.3). II: 3.2, 1.65, 2.5, 2.25, 1.6 (11.2). III: 3.1, 1.4, 2.3, 2.35, 1.55 (10.7). IV: 4.05, 1.65, 3.25, 3.85, 1.8 (14.6). Leg spination: I: Fe d 1 - 0 - 1 p 0 - 1 - 1; Ti p 1 - 0 - 1 v 2 - 0 - 2; Mt v 2 - 0 - 0. II: Fe d 1 - 0 - 1 p 0 - 1 - 1; Ti p 1 - 0 - 1 v 1 - 2 - 0; Mt v 2 - 0 - 0. III: Fe d 1 - 1 - 1 p 0 - 1 - 1 r 0 - 1 - 1; Ti d 1 - 0 - 0 p 1 - 1 - 1 r 1 - 1 - 1 v 1 - 2 - 2; Mt d 0 - 2 - 0 p 1 - 1 - 0 r 1 - 1 - 0 v 2 - 2 - 0. IV: Fe d 1 - 1 - 1 p 0 - 1 - 1 r 0 - 0 - 1; Ti d 1 - 0 - 1 p 1 - 1 - 1 r 2 - 0 - 1 v 2 - 2 - 2; Mt d 1 - 2 - 0 p 1 - 1 - 0 r 1 - 1 - 0 v 2 - 0 - 2. Epigyne as in Figs 37 – 39. Fovea (Fo) cross-inclined, with wide lateral margins (Lm). Median plate (Mp) expands anteriorly, rugose. Copulatory openings (Cp) well-visible. Anterior receptacles (Ar) converging, separated by 1.5 times of their diameter. Posterior receptacles (Pr) almost contiguous. Heads of posterior receptacles (Rh) inclined posteriorly.	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF924911FF60359652701C66.taxon	distribution	Distribution. The species has the widest range in the genus. It is known from Azerbaijan throughout the southern part of Russian Plain and the South Urals to southern Kazakhstan, and southward to northern Iran (Esyunin & Tuneva 2002; Huseynov & Nuruyeva 2017; Zamani et al. 2016). The new records from Almaty Oblast represents the easternmost locality of this species (Fig. 44).	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF924911FF60359652701C66.taxon	discussion	Comments. The epigynes of the newly collected females from Almaty Oblast of Kazakhstan differ from those of Iranian and Azeri females, which were illustrated by Zamani et al. (2016) and Huseynov & Nuruyeva (2017), in the following characters: the fovea is almost parallel to the epigastric furrow in Iranian and Azeri females but oblique in the Kazakh females. Yet, the females from Kazakhstan have pronounced heads of the posterior receptacles, which are not visible in Iranian and Azeri females (Zamani et al. 2016; Huseynov & Nuruyeva 2017). Unfortunately, the females from Malaisary Mt. Range were collected without males to confirm the identification. At present, the above-mentioned differences in the structure of epigyne are treated as a variation, which is normal for the species with such large range. However, it is likely that Iranian and Azerbaijani specimens could belong to a separate, yet undescribed species.	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF9C4912FF6030BC53571E96.taxon	description	Figs 5 – 6, 11 – 12, 31 – 36, 40 – 41, 44	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF9C4912FF6030BC53571E96.taxon	materials_examined	Material examined. MONGOLIA: Khovd Aimag: 1 ♂ (ISEA, 001.8943), 46 km S from Altai Village, Bodonchyin-Gol River valley, 45 ° 46 ’ N, 92 ° 10 ’ E, cliff on the river bank, 1270 m, 07 – 08.05.2012, A. A. Fomichev; 1 ♀ (ISEA, 001.8944), same locality, 45 ° 45 ’ N, 92 ° 11 ’ E, stony desert, 1300 m, 07 – 08.05.2012, A. A. Fomichev.	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF9C4912FF6030BC53571E96.taxon	diagnosis	Diagnosis. The male of S. rogue differs from all the congeners in having a strongly reduced RTA, which is 4 times shorter than tibia (vs. as long as tibia or twice shorter than tibia in other species) (cf. Figs 31 – 33 and 13 – 15, 16 – 18, 25 – 27). The female of S. rogue is very similar to that of S. tianschanicus, but can easily be distinguished by epigynal proportions: viz., in S. rogue the epigynal fovea is 1.7 times longer than wide and the anterior receptacles (Ar) are significantly larger than the posterior ones (Pr) (vs. epigynal fovea is 2.1 times longer than wide and the anterior and posterior receptacles are equal in size in S. tianschanicus) (cf. Figs 40 – 41 and 42 – 43).	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF9C4912FF6030BC53571E96.taxon	description	Description. Male. Total length 8.0. Carapace: 3.4 long, 2.25 wide. Colouration. Carapace yellow-brown. Chelicerae and labium brown. Endites light brown. Sternum yellow-brown. Coxae yellow. Palps yellow-brown. Legs yellow. Mt – Ta of legs I – II light brown. Abdomen and spinnerets yellow-beige. Leg measurements: I: 3.05, 1.6, 2.8, 2.35, 1.65 (11.45). II: 2.75, 1.45, 2.3, 2.05, 1.5 (10.05). III: 2.55, 1.2, 1.95, 2.1, 1.4 (9.2). IV: 3.4, 1.4, 2.8, 3.4, 1.6 (12.6). Leg spination: I: Fe d 1 - 0 - 1 p 0 - 1 - 1; Ti v 2 - 2 - 0; Mt v 2 - 0 - 0. II: Fe d 1 - 0 - 1 p 0 - 1 - 1; Ti p 0 - 0 - 1 v 0 - 2 - 0; Mt v 2 - 0 - 0. III: Fe d 1 - 1 - 1 p 0 - 1 - 1 r 0 - 1 - 1; Ti d 1 - 0 - 0 p 1 - 1 - 1 r 1 - 1 - 1 v 1 - 2 - 2; Mt d 0 - 2 - 0 p 1 - 1 - 0 r 1 - 1 - 0 v 2 - 2 - 0. IV: Fe d 1 - 1 - 1 p 0 - 1 - 1 r 0 - 1 - 1; Ti d 1 - 0 - 1 p 1 - 1 - 1 r 2 - 0 - 1 v 2 - 2 - 2; Mt d 1 - 2 - 0 p 1 - 1 - 0 r 1 - 1 - 0 v 2 - 0 - 2. Palp as in Figs 31 – 36. Tegulum (Te) 1.6 times longer than wide. Sperm duct (Sd) well visible in ventral view. Median apophysis (Ma) small, two times shorter than the embolus (Em). Membrane of median apophysis (Mm) and triangular membrane (Tm) well-developed. Conductor (Cn) originates at a 12: 30 o’clock position. Embolic apex slightly bent prolaterad. Female. Total length 7.8. Carapace: 3.5 long, 2.45 wide. Colouration. Carapace yellow-brown. Chelicerae and labium light brown. Endites and sternum yellow-brown. Coxae yellow. Legs and palps yellow, darker distally. Abdomen grey-beige. Spinnerets yellow. Leg measurements: I: 3.05, 1.55, 2.55, 2.15, 1.55 (10.85). II: 2.85, 1.45, 2.35, 2.1, 1.5 (10.25). III: 2.75, 1.25, 2.1, 2.2, 1.4 (9.7). IV: 3.65, 1.5, 3.1, 3.65, 1.65 (13.55). Leg spination: I: Fe d 1 - 0 - 1 p 0 - 0 - 1; Ti v 1 - 2 - 0; Mt v 2 - 0 - 0. II: Fe d 1 - 1 - 0 p 0 - 1 - 2; Ti p 0 - 0 - 1 v 0 - 2 - 0; Mt v 2 - 0 - 0. III: Fe d 1 - 1 - 1 p 0 - 1 - 1 r 0 - 1 - 1; Ti d 1 - 0 - 0 p 1 - 1 - 1 r 1 - 1 - 1 v 1 - 2 - 2; Mt d 0 - 2 - 0 p 1 - 1 - 0 r 1 - 1 - 0 v 2 - 0 - 2. IV: Fe d 1 - 1 - 1 p 1 - 0 - 0 r 0 - 1 - 1; Ti d 1 - 0 - 1 p 1 - 1 - 1 r 2 - 0 - 1 v 1 - 2 - 2; Mt d 1 - 2 - 0 p 1 - 1 - 0 r 1 - 1 - 0 v 2 - 0 - 2. Epigyne as in Figs 40 – 41. Fovea (Fo) cross-inclined, very wide, with thin lateral margins. Median plate (Mp) inverted triangle-shaped, almost smooth. Anterior receptacles (Ar) diverging, separated by 0.35 times of their diameter. Posterior receptacles (Pr) nearly rectangular, without pronounced heads.	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF9C4912FF6030BC53571E96.taxon	discussion	Comments. The male of this species is well-described by Tuneva (2004). Here, I have also provided a description of the previously unknown female (see above).	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF9C4912FF6030BC53571E96.taxon	distribution	Distribution. Previously, the species was known only from the type locality near Zaisan Lake in East Kazakhstan Oblast. The new record from western Mongolia represents the easternmost records of this species (Fig. 44). It is likely that it occurs also in Xinjiang Province of China.	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF9F4913FF60324B52CD1EDA.taxon	discussion	Males	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
BA4C87EFFF9F4913FF60324B52CD1EDA.taxon	discussion	Possible relationships within Sidydrassus Of the four species currently assigned to the genus, S. saiynovi sp. n., S. tianschanicus, and S. rogue seem to be closely related as they are similar in having the median apophysis without a prolateral branch, similar proportions of the embolic base, the wide epigynal fovea, the diverging anterior receptacles and posterior receptacles without pronounced heads (Figs 13, 16, 20, 23, 31, 35, 40 – 43). The generotype, S. shumakovi, stays apart and possesses the median apophysis with a prolateral branch, the thick embolic base, the slit-shaped epigynal fovea, the converging anterior receptacles and the posterior receptacles with pronounced heads (Figs 25, 29, 37 – 39). Thus, all the Sidydrassus species can be divided into two species groups: the shumakovi - group (one species) and the tianschanicus - group (three species) (Table 1).	en	Fomichev, Alexander A. (2022): A survey of the East Palaearctic Gnaphosidae (Araneae). 12. A review of Sidydrassus Esyunin & Tuneva, 2002. Zootaxa 5194 (2): 260-272, DOI: https://doi.org/10.11646/zootaxa.5194.2.7
