Atypus, Latreille, 1804

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 : 4-6

Key to Chinese Species of Atypus

1 Female (females of A. flexus and A. sinesis are unknown) ........................................... 2

– Male (males of A. ledongensis are unknown) ............................................................. 11

2 Fovea short, strongly recurved and chevron­shaped..................................................... 3

– Fovea wider, fairly straight and not chevron­shaped .................................................... 4

3 Median pair of receptacula digitiform ( Figs 19–20 ); fourth pair of sternal sigilla kidney­shaped ( Fig. 18 ) ............................................................................... A. heterothecus

– Median pair of receptacula pyriform, with relatively longer and thicker basal stalks ( Figs 102–105 ); fourth pair of sternal sigilla almost top­shaped ( Fig. 101 ) ................... ........................................................................................................ A. tibetensis sp. nov.

4 First pair of sigilla remote from anterior margin of sternum ........................................ 5

– First pair of sigilla close to anterior margin of sternum ................................................ 6

5 Labium lacking cuspules ( Fig. 70 ); basal stalks of median pair of receptacula longer than two times of diameter of receptacula ( Figs 71–74 ) .............. A. sacculatus sp. nov.

– Labium with cuspules ( Fig. 41 ); basal stalks of median pair of receptacula shorter than diameter of receptacula ( Figs 42–43 ) ...................................... A. largosaccatus sp. nov.

6 Median pair of receptacula situated at atrial margin ..................................................... 7

– Median pair of receptacula situated in posterior part of atrium .................................... 8

7 Anterior margin of carapace obviously wider than posterior part ( Fig. 50 ); diameter of lateral pair of receptacula almost as long as its basal stalks ( Figs 53–55 ) ...................... .................................................................................................... A. ledongensis sp. nov.

– Lateral margins of carapace almost parallel ( Fig. 111 ); diameter of lateral pair of receptacula almost two times as long as its basal stalks ( Figs 114–116 ) ........................ ............................................................................................................. A. yajuni sp. nov.

8 All four receptacula more or less equal in size, basal stalks indistinct ( Figs 90–92 )...... ................................................................................................................ A. suiningensis

– All receptacula not equal in size, with obvious basal stalks ......................................... 9

9 Basal stalks of median pair of receptacula shorter than diameter of receptacula, lateral patches of pores on atrium larger ( Figs 29–33 ) ............................................... A. karschi

– Basal stalks of median pair of receptacula longer than diameter of receptacula, lateral patches of pores on atrium smaller.............................................................................. 10

10 Receptacula larger, their diameters almost equal or slightly larger than diameters of lateral patches of pores on genital atrium ( Figs 59–62 ) ............. A. pedicellatus sp. nov.

– Receptacula smaller, with its diameter only 2/5 diameters of lateral patches of pores on genital atrium ( Fig. 54 ) .................................................................... A. baotianmanensis

11 Fovea strongly recurved and chevron­shaped; upper distal corner of conductor slightly extruding and far from tegular process ( Figs 108–110 ) ................. A. tibetensis sp. nov.

– Fovea otherwise........................................................................................................... 12

12 Upper distal corner of conductor close to tegular process in prolateral view ............. 13

– Upper distal corner of conductor far from tegular process in prolateral view ............ 14

13 Upper distal corner of conductor rounded and not pointed in retrolateral view ( Fig. 25 ); sternum longer than wide ( Fig. 22 ) ................................................. A. heterothecus

– Upper distal corner of conductor triangular and pointed in retrolateral view ( Fig. 38 ); sternum wider than long ( Fig. 35 ) ................................................................... A. karschi

14 Conductor wide and fan­like ( Figs 8–9 ) ........................................... A. baotianmanensis

– Conductor relatively narrow and not fan­like ............................................................. 15

15 Upper distal corner of conductor not folded downwards to cover embolus ............... 16

– Upper distal corner of conductor folded downwards to cover embolus ..................... 17

16 Lateral margins of carapace almost parallel; sternum wider than long ( Fig. 111 ); lower distal corner of conductor triangular ( Figs 120–121 ) .......................... A. yajuni sp. nov.

– Anterior part of carapace wider than posterior part ( Fig. 80 ); sternum longer than wide ( Fig. 82 ); lower distal corner of conductor finger­like ( Fig. 84 ) .................... A. sinensis

17 First pair of sigilla remote from anterior margin of sternum ...................................... 18

– First pair of sigilla close to anterior margin of sternum .............................................. 20

18 Conductor short, with its base wide and upper distal corner covered basal part of embolus ( Figs 13–15 ) ........................................................................... A. flexus sp. nov.

– Conductor relatively longer, its base narrow and its upper distal corner covered distal part of embolus............................................................................................................ 19

19 First pair of sigilla round ( Fig. 45 ); upper distal corner of conductor lacking notch on folded part, lower distal corner of conductor long ( Figs 47–48 )..................................... ................................................................................................. A. largosaccatus sp. nov.

– First pair of sigilla kidney­shaped ( Fig. 76 ); upper distal corner of conductor with notch on folded part, lower distal corner of conductor short ( Figs 78–79 )..................... ...................................................................................................... A. sacculatus sp. nov.

20 Upper margin of conductor almost straight in prolateral view, lower distal corner finger­like ( Fig. 96 ) ..................................................................................... A. suiningensis

– Upper margin of conductor distinctly curved, lower distal corner triangular ( Fig. 66 ) .. .................................................................................................... A. pedicellatus sp. nov.

Figures

FIGURES 16–25. Atypus heterothecus Zhang 1985. 16–20, females. 16, carapace, dorsal view; 17, left chelicera, inner­lateral view; 18, labium and sternum, ventral view; 19–20, vulvae, dorsal view (19, from Mt Qiyun, Anhui; 20, from Sangzhi, Hunan). 21–25, male. 21, left chelicera, inner­lateral view; 22, labium and sternum, ventral view; 23, left palp, prolateral view (from Meitan, Guizhou); 24, male left palpal bulb, prolateral view; 25, same, retrolateral view. Scale bars: 16–18, 21–22, 1.0mm; 19–20, 23, 0.2mm; 24–25, 0.1mm.

FIGURES 99–110. Atypus tibetensis sp. nov., 99–105, female paratypes. 99, carapace, dorsal view; 100, left chelicera, inner­lateral view; 101, labium and sternum, ventral view; 102–105, vulvae, dorsal view (from Zayü, Xizang). 106–110, male holotype. 106, left chelicera, inner­lateral view; 107, labium and sternum, ventral view; 108, left palp, prolateral view (from Zayü, Xizang); 109, left palpal bulb, prolateral view; 110, same, retrolateral view. Scale bars: 99–101, 106–107, 1.0mm; 102–105, 108–110, 0.2mm.

FIGURES 68–79. Atypus sacculatus sp. nov., 68–74, female paratypes. 68, carapace, dorsal view; 69, left chelicera, inner­lateral view; 70, labium and sternum, ventral view; 71–74, vulvae, dorsal view (from Lianghe, Yunnan). 75–79, male holotype. 75, left chelicera, inner­lateral view; 76, labium and sternum, ventral view; 77, left palp, prolateral view (from Yingjiang, Yunnan); 78, left palpal bulb, prolateral view; 79, same, retrolateral view. Scale bars: 68–70, 75–76, 1.0mm; 71–74, 77–79, 0.2mm.

FIGURES 39–49. Atypus largosaccatus sp. nov., 39–43, female paratypes. 39, carapace, dorsal view; 40, left chelicera, inner­lateral view; 41, labium and sternum, ventral view; 42–43, vulvae, dorsal view (42, from Lichuan, Hubei; 43, from Mt Wudang, Hubei). 44–49, male holotype. 44, left chelicera, inner­lateral view; 45, labium and sternum, ventral view; 46, male left palp, prolateral view (from Langao, Shaanxi); 47, left palpal bulb, prolateral view; 48, same, retrolateral view; 49, same, dorsal view. Scale bars: 39–41, 44–45, 1.0mm; 42–43, 46–49, 0.2mm.

FIGURES 50–55. Atypus ledongensis sp. nov., 50–55, female holotype and paratypes. 50, carapace, dorsal view; 51, left chelicera, inner­lateral view; 52, labium and sternum, ventral view; 53–55, vulvae, dorsal view. 51–53, holotype; 54–55, paratypes. Scale bars: 50–52, 1.0mm; 53–55, 0.2mm.

FIGURES 111–121. Atypus yajuni sp. nov., 111–116, female paratypes. 111, carapace, dorsal view; 112, left chelicera, inner­lateral view; 113, labium and sternum, ventral view; 114–116, vulvae, dorsal view (from Mt Guniujiang, Anhui). 117–121, male holotype. 117, left chelicera, inner­lateral view; 118, labium and sternum, ventral view; 119, left palp, prolateral view (from Mt Guniujiang, Anhui); 120, left palpal bulb, prolateral view; 121, same, retrolateral view. Scale bars: 111–113, 117–118, 1.0mm; 114–116, 119–121, 0.2mm.

FIGURES 87–98. Atypus suiningensis Zhang 1985. 87–92, females. 87, carapace, dorsal view; 88, left chelicera, inner­lateral view; 89, labium and sternum, ventral view; 90–92, vulvae, dorsal view (90, 91, from Suining, Hunan; 92, from Tiantong, Zhejiang). 93–98, male. 93, left chelicera, innerlateral view; 94, labium and sternum, ventral view; 95, left palp, prolateral view (from Suining, Hunan); 96, left palpal bulb, prolateral view; 97, same, retrolateral view; 98, same, dorsal view. Scale bars: 87–89, 93–94, 1.0mm; 90–92, 95–98, 0.2mm.

FIGURES 26–38. Atypus karschi Dönitz 1887. 26–33, females. 26, carapace, dorsal view; 27, left chelicera, inner­lateral view; 28, labium and sternum, ventral view; 29–33, vulvae, dorsal view (29, from Chong’an, Fujian; 30, from Xianning, Hubei; 31, from Sangzhi, Hunan; 32, from Mt Qiyun, Anhui; 33, Meitan, Guizhou). 34–38, male. 34, left chelicera, inner­lateral view; 35, labium and sternum, ventral view; 36, male left palp, prolateral view (from Chong’an, Fujian); 37, male left palpal bulb, prolateral view; 38, same, retrolateral view. Scale bars: 26–28, 34–35, 1.0mm; 29–33, 36–38, 0.2mm.

FIGURES 56–67. Atypus pedicellatus sp. nov., 56–62, female paratypes. 56, carapace, dorsal view; 57, left chelicera, inner­lateral view; 58, labium and sternum, ventral view; 59–62, vulvae, dorsal view (59–61, from Yangbi, Yunnan; 62, from Longchuan, Yunnan). 63–67, male holotype. 63, left chelicera, inner­lateral view; 64, labium and sternum, ventral view; 65, left palp, prolateral view (from Yangbi, Yunnan); 66, left palpal bulb, prolateral view; 67, same, retrolateral view. Scale bars: 56–58, 63–64, 1.0mm; 59–62, 65–67, 0.2mm.

FIGURES 1–9. Atypus baotianmanensis Hu 1994. 1–5, females. 1, carapace, dorsal view; 2, left chelicera, inner­lateral view; 3, labium and sternum, ventral view; 4–5, vulvae, dorsal view (from Baotianman, Henan). 6–9, male. 6, right chelicera, inner­lateral view; 7, labium and sternum, ventral view; 8, left palp of male, prolateral view; 9, same, retrolateral view. 5–9 copied from Hu (1994). Scale bars: 1–3, 7, 1.0mm; 4, 0.2mm.

FIGURES 80–86. Atypus sinensis Schenkel 1953, male. 80, carapace, dorsal view; 81, left chelicera, inner­lateral view; 82, labium and sternum, ventral view; 83, left palp, prolateral view; 84, left palpal bulb, prolateral view; 85, same, retrolateral view; 86, same, dorsal view. Scale bars: 80–82, 1.0mm; 83–86, 0.2mm.

FIGURES 10–15. Atypus flexus sp. nov., 10–15, male holotype. 10, carapace, dorsal view; 11, left chelicera, inner­lateral view; 12, labium and sternum, ventral view; 13, male left palp, prolateral view; 14, left palpal bulb, prolateral view; 15, same, retrolateral view. Scale bars: 10–12, 1.0mm; 13–15, 0.2mm.