Atypus suiningensis Zhang 1985

Zhu, Ming-Sheng, Zhang, Feng, Song, Daxiang & Qu, Ping, 2006, A revision of the genus Atypus in China (Araneae: Atypidae), Zootaxa 1118, pp. 1-42 : 28-31

publication ID

https://doi.org/10.5281/zenodo.5778239

publication LSID

lsid:zoobank.org:pub:3E49DC9C-33E6-4F36-A32F-9FFAFF58C3CE

DOI

https://doi.org/10.5281/zenodo.5778279

persistent identifier

https://treatment.plazi.org/id/03F04F09-FFDA-FF86-FEB0-6EABB3FB44FB

treatment provided by

Felipe

scientific name

Atypus suiningensis Zhang 1985
status

 

Atypus suiningensis Zhang 1985

( Figs 87–98 View FIGURES 87–98 )

Atypus suiningensis Zhang 1985: 140 , fig. 2 (1 male holotype, 8 female paratypes from Hunan, Suining, China, HNU, not examined). — Schwendinger 1990: 360. — Song, Zhu & Chen 1999: 35, figs 15S, 16D–E.

Material examined. CHINA: Hunan Province, Suining County, N 26°35’, E 110°10’, 2 males and 1 juvenile female, 14 October 1996, M. Y. Liu leg. ( HNU) ; Suining County, 23 females, 17 September 2004, M. S. Zhu, F. Zhang and J. X. Zhang leg. ( MHBU) ; Zhejiang Province, Ningbo City, Mt Tiantong , N 29°48’, E 121°42’, 2 males and 2 females, 8 July 2001, Y. J. Zhang leg. ( MHBU) .

Diagnosis. Males of this species resemble those of A. karschi in the shape of their palpal bulb, but differs in males by metatarsus IV having spines dorsally, by the longer conductor situated far away from tegular process in retrolateral view and with its upper margin almost straight in prolateral view, and by the rounded upper distal corner of the conductor ( Figs 96, 97 View FIGURES 87–98 ); females differ by the almost equal­sized four pyriform receptacula and the oval lateral patches of pores ( Figs 90–92 View FIGURES 87–98 ).

Redescription.

Male. Total length (including chelicerae) 11.07. Carapace 4.05 long, 3.78 wide; abdomen 4.41 long, 2.52 wide. Carapace similar to that of A. karschi , but with narrower fovea. Eyes set on elevated black tubercle, eye region occupying nearly one­third of width of pars cephalica. Anterior eye row slightly recurved, posterior eye row distinctly recurved, both eye rows almost equal in width. Eye diameters: AME 0.25, ALE 0.20, PME 0.18, PLE 0.18. Distances AME–AME 0.15, AME–ALE 0.05, PME–PME 0.63, PME– PLE 0.03. MOA 0.45 long, front width 0.70, back width 0.88. Fovea transverse and narrow, occupying about 1/10 of carapace width at that point. Chelicerae red brown, with 13 teeth on promargin and granular texture on pro­ and retrolateral faces. Anterior lobe of pedipalp coxa red brown, inner­margin with row of nine cuspules. Labium and sternum red brown, with black border, 2.79 long and 3.15 wide. Second and third pair of sigilla small.

Abdomen oval and dark brown, anterior half with four pale yellow brown cambered bands dorsally, dorsal scutum red brown. ALS 0.40 long, PMS 0.63 long, PLS 2.11 long (basal joint 0.53, median 0.40, subapical 0.50, apical 0.48).

Palpal femur with furrow. Legs thin, covered with short and thin hairs and few spines. Legs III, IV, tarsi and metatarsi of legs I, II yellow brown. Femora, patellae and Tibiae of legs I, II red brown. Femur I with granular texture, femur II lacking this texture. Metatarsus IV with five dorsal spines. Leg formula: 4123.

Male palp ( Figs 95–98 View FIGURES 87–98 ): conductor longer and far away from tegular process in retrolateral view, upper corner rounded and upper margin almost straight in prolateral view.

Female. Total length (including chelicerae) 17.10. Carapace 5.58 long, 5.22 wide; abdomen 7.56 long, 5.13 wide. Carapace similar to that of male in shape, coloration and pattern. Eye tubercle lower in male. Eye region occupying nearly one­third of width of pars cephalica. Eye diameters: AME 0.27, ALE 0.24, PME 0.20, PLE 0.20. Distances AME–AME 0.20, AME–ALE 0.14, PME–PME 0.71, PME–PLE 0.03. MOA 0.55 long, front width 0.71, back width 1.12. Fovea transverse, occupying about 1/10 of carapace width at that point. Chelicerae red brown, with 13 teeth on promargin, lacking granular texture. Anterior lobe of pedipalp coxa similar to that of male, but with more cuspules. Sternum darker than that of male, wider than long. Sigilla as in male.

Abdomen oval, dark yellow brown, with small and pale orange dorsal tergite. ALS 0.61 long, PMS 1.16 long, PLS 4.12 long (basal joint 0.75, median 1.02, subapical 1.12, apical 1.05).

Legs red brown, shorter and thicker than those of male, with relatively longer hairs and few short and thin spines. Metatarsus IV with 3–4 dorsal spines. Leg formula: 1423.

Vulva ( Figs 90–92 View FIGURES 87–98 ): atrium relatively long, with oval lateral patches of pores; all four receptacula pyriform and almost equal in size, lacking obvious basal stalks.

Variation. Size range of mature females: carapace length 5.58–5.76, width 5.22–5.40, total length 17.10–17.64, n=25; size range of mature males: carapace length 4.05–4.06, width 3.78–3.96, total length 11.07–12.69, n=4.

Habitat. Found abundantly in pursewebs attached to the bases of the China firs and rocks. The total length of tubes of mature females is 27.0–28.0 mm (n = 2), and the aerial portion is 22.5–23.0 mm.

Distribution. China: Hunan, Zhejiang.

Remarks. This species was originally described by Zhang (1985) from specimens collected in Suining County, Hunan Province, China. Unfortunately he did not provide more valuable characters than vulva structure and narrower conductor. By examining the specimens collected from the type locality, we redescribe this species and provide more relevant illustrations for identification.

HNU

Hunan Normal University

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Atypidae

Genus

Atypus

Loc

Atypus suiningensis Zhang 1985

Zhu, Ming-Sheng, Zhang, Feng, Song, Daxiang & Qu, Ping 2006
2006
Loc

Atypus suiningensis

Song, D. X. & Zhu, M. S. & Chen, J. 1999: 35
Schwendinger, P. J. 1990: 360
Zhang, Y. J. 1985: 140
1985