Draconarius turriformis, Liu, Jie & Li, Shuqiang, 2010

Liu, Jie & Li, Shuqiang, 2010, New Coelotine spiders from Xishuangbanna Rainforest, Southwestern China (Araneae: Amaurobiidae), Zootaxa 2442, pp. 1-24 : 17-21

Draconarius turriformis sp. nov.

Figs 16–20 and 21

Type material: Holotype male, one female paratype, CHINA: Yunnan Province, Xishuangbanna Dai Autonomous Prefecture, Mengla County, Menglun Natural Reserve, Secondary tropical seasonal moist forest (21º54.607’N, 101º17.005’E, Alt: 633m), 23 October 2006, Guo ZHENG leg.

Etymology: The specific epithet is taken from the Latin adjective ‘ turriformis ’, referring to the tower– shape spermathecae of female epigyne; adjective.

Diagnosis: The new species can be distinguished from other Draconarius and Coelotes species by the following characters: 1, conductor wide and long, extending beyond the median apophysis, with the proximal margin branching distally ( Figs 17 A, 18B); 2, embolus filiform, thick proximally and slender distally ( Figs 17 A, 18B); 3, patellar apophysis distinctly large ( Figs 17 A, 18B); 4, spermathecae large, tower–shaped ( Figs. 17 C, 20C).

Description. Male (measurements of the holotype): Total length 7.00. Prosoma length 3.75, width 2.75; Opisthosoma length 3.25, width 2.35. Eye measurements: AME 0.25; ALE 0.38; PME 0.35; PLE 0.38; AME– AME 0; AME–ALE 0.05; ALE–PLE 0; PME–PME 0; PME–PLE 0.15. Eyes pale, AME slightly reduced, the tubercles of eyes not reduced. Clypeus height 0.20. Leg formula: IV, I, II, III; leg measurements: I: 12.50 (3.40, 4.15, 3.20, 1.75); II: 11.85 (3.50, 3.70, 3.00, 1.65); III: 8.90 (2.75, 2.35, 2.65, 1.15); IV: 12.30 (3.50, 4.00, 3.45, 1.35). Chelicerae with three promarginal and two retromarginal teeth ( Fig.16 C). Patellar apophysis large, twice the patellar length ( Figs 17 A, 18B); RTA with blunt distal end ( Figs 16 B, 19B); lateral tibial apophysis small, situated close to RTA ( Figs 16 B, 19B); cymbial furrow longer than half of cymbial length, with the distal end widely separated from the cymbium ( Figs 16 B, 19B); conductor wide and long, extending beyond the median apophysis, with the proximal margin branching distally, conductor dorsal apophysis small, slightly curved distally ( Figs 17 A, 18B); median apophysis large, spoon–shaped ( Figs 16 B, 19B); embolus filiform, thick proximally and slender distally, originating proximally ( Figs 17 A, 18B).

Female (measurements of paratype): Measurements: Total length 6.75. Prosoma length 3.40, width 2.30; Opisthosoma length 3.35, width 2.35. Eye measurements: AME 0.20; ALE 0.30; PME 0.30; PLE 0.30; AME–AME 0; AME–ALE 0.10; ALE–PLE 0; PME–PME 0; PME–PLE 0.20. Eyes white, AME slightly reduced, the tubercles of eyes slightly reduced. Clypeus height 0.20. Leg formula: IV, I, II, III; leg measurements: I: 8.05 (2.25, 2.75, 1.85, 1.20); II: 7.50 (2.25, 2.50, 1.75, 1.00); III: 6.00 (1.85, 1.90, 1.50, 0.75); IV: 8.40 (2.75, 2.75, 2.00, 0.90). Chelicerae with three promarginal and two retromarginal teeth.

Epigynal teeth small, situated posteriorly and laterally, widely separated ( Figs 17 B, 20B); atrium small, shallow, situated posteriorly ( Figs 17 B, 20B); copulatory ducts large, originating posteriorly ( Figs 17 C, 20C); spermathecal heads small, situated anteriorly, originating from copulatory ducts, widely separated ( Figs 17 C, 20C); spermathecae large, tower–shaped and slightly separated ( Figs 17 C, 20C).

Distribution: Only known from Menglun Natural Reserve of Xishuangbanna Dai Autonomous Prefecture in Yunnan Province in China ( Fig 13 ).

Remarks: The long cymbial furrow, large spoon–shaped median apophysis, long embolus, large and posteriorly originated copulatory ducts and strongly convoluted spermathecae suggest this species may be a member of genus Draconarius , but a large patellar apophysis suggests that this species may belong to the genus Coelotes . Meanwhile, both of these two genera are not monophyletic now, so we tentatively place this species in genus Draconarius .

Figures

FIGURE 13 Draconarius exiguus sp. nov., photos based on holotype male. A. Male habitus, dorsal view; B. Left palp, retrolateral view. Scale bars: A = 1 mm, B = 0.2 mm.

FIGURE 16. Draconarius turriformis sp. nov., holotype male. A. Left palp, prolateral view; B. Same, retrolateral view; C. Male cheliceral teeth, ventral view. CF = cymbial furrow; Em = embolus; LTA = lateral tibial apophysis; MA = median apophysis; PA = patellar apophysis; RTA = retrolateral tibial apophysis; ST = subtegulum; T = tegulum. Scale bars = 0.2 mm.

FIGURE 17. Draconarius turriformis sp. nov., holotype male (A) and female paratype (B – C). A. Left palp, ventral view; B. Epigynum, ventral view; C. Vulva, dorsal view. At = atrium; CD = copulatory duct; Co = conductor; EB = embolic base; ET = epigynal tooth; FD = fertilization duct; S = spermatheca; SH = spermathecal head. Scale bars = 0.2 mm.

FIGURE 18. Draconarius turriformis sp. nov., photos based on holotype male. A. Male habitus, dorsal view; B. Left palp, retrolateral view. Scale bars = 0.2 mm.

FIGURE 21. The location of Menglun Natural Reserve of Xishuangbanna Dai Autonomous.