Draconarius linzhiensis ( Hu, 2001 ), 2003

Li, Bing, Zhao, Zhe, Chen, Haifeng, Wu, Zhiyan & Li, Shuqiang, 2019, Four new species of the genus Draconarius Ovtchinnikov, 1999 (Araneae, Agelenidae) from the Tibetan Plateau, China, Zootaxa 4648 (1), pp. 141-154 : 146-148

Draconarius linzhiensis ( Hu, 2001)

Figs 3–4 , 8

Coelotes linzhiensis Hu, 2001: 138 , fig. 48.1–2.

Draconarius linzhiensis ( Hu, 2001) Wang, 2003: 537 ; Zhu et al. 2017: 350, fig. 184A–B.

Type material. Holotype ♀ ( SDU, not examined): Nyingchi City (2750 m), Tibet, China, 18. VII. 1988, F.P. Zhang leg. Paratypes: 5♀ ( SDU, not examined): same data as holotype .

Material examined. 1♂ (IZCAS-Ar39618): Segula Mountain (N29.59782º, E94.60458º, 4200 m), Bayi Coun- ty, Nyingchi City, Tibet, China, 22. V. 2010, H. Yu, D.J. Ciren and G.R. Zhang leg. ; 1♂ (IZCAS-Ar39619): Same mountain as IZCAS-Ar39618 (N29.59473º, E94.60057º, 4162 m), 26. VIII. 2018, X.Q. Zhang and J.C. Liu leg. ; 1♀ (IZCAS-Ar39620), same data as IZCAS-Ar39619 ; 3♂ 6♀ (IZCAS-Ar39621), same data as IZCAS-Ar39619 .

Diagnosis. The male of D. linzhiensis can be separated from its similar species D. tibetensis Wang, 2003 by having the VTA and RTA spine-like; cymbial furrow short, about 1/2 cymbial length; embolus does not coil and is distally short. The two species can easily be separated by the size of the RTA ( VTA about 2 times longer than RTA in D. linzhiensis in Fig. 3C and 4 times longer in D. tibetensis in fig 64C in Wang 2003) and the shape of the dorsal apophysis of the conductor (triangular in D. linzhiensis in Fig. 3B and rectangular in D. tibetensis in fig. 64B in Wang 2003). The female of D. linzhiensis is most similar to D. himalayaensis ( Hu, 2001) . The two species differ by the posterior margin of the atrium, which is obvious and well separated from the posterior margin of the epigyne in D. linzhiensis ( Fig. 4A ) while in D. himalayaensis the posterior margin of the atrium is close to the posterior margin of the epigyne, making the posterior margin of the atrium more obscure (fig. 45.1 in Hu 2001); additionally, in D. linzhiensis the spermathecal heads originate medially from the spermathecae ( Fig. 4B ) and in D. himalayaensis they originate anteriorly (fig. 45.2 in Hu 2001).

Description. Male ( IZCAS -Ar39619). Carapace brown. Clypeus, endites, labium black-brown. Sternum and legs brown. Abdomen light-brown, with five chevron-shaped patterns, covered by blueish-grey hairs. Spinnerets have the same colour as the carapace. Total length 10.23. Carapace 4.92 long, 3.53 wide. Abdomen 5.31 long, 3.11 wide. Eye sizes and interdistances: AME 0.12, ALE 0.19, PME 0.15, PLE 0.17; AME–AME 0.12, AME–ALE 0.15, AME–PME 0.09, ALE–PLE 0, PME–PME 0.12, PME–PLE 0.14. Leg measurements: I 18.18 (6.06, 5.49, 4.32, 2.31); II 17.62 (5.61, 5.16, 4.17, 2.68); III 14.27 (4.79, 3.79, 3.54, 2.15); IV 19.48 (6.22, 5.82, 5.26, 2.18). Palp: Femur 3.4 times longer than wide. Patellar apophysis long, VTA and RTA spine-like, VTA about 2 times longer than RTA. Patellar macrosetae lacking, tibia and base of cymbium with long dorsal and prolateral macrosetae. Cymbium 1.8 times longer than bulb, cymbial furrow short, about 1/2 cymbial length; conductor short, with large basal lamella and small dorsal apophysis; embolus originates at about the 6 o'clock position ( Fig. 3 A–C).

Female ( IZCAS -Ar39620): Colour and abdominal patterns as in males. Total length 10.01. Carapace 4.93 long, 3.83 wide. Abdomen 5.08 long, 3.85 wide. Eye sizes and interdistances: AME 0.10, ALE 0.10, PME 0.13, PLE 0.16; AME–AME 0.13, AME–ALE 0.15, AME–PME 0.12, ALE–PLE 0, PME–PME 0.18, PME–PLE 0.21. Leg measurements: leg I 15.92 (6.04, 4.65, 3.29, 1.94); II 14.95 (5.89, 4.09, 3.26, 1.71); III 14.22 (5.17, 3.98, 3.09, 1.98); IV 17.52 (6.04, 4.95, 4.17, 2.36). Other descriptions see Hu (2001) and Wang (2003). Photos of habitus and epigyne are provided here ( Fig. 4 A–B, D–E).

Variation. Total length of males 10.23–14.06 (n=5) and of females 10.01–15.50 (n=13).

Distribution. Known only from Tibet, China ( Fig. 8 ).

Figures

FIGURE 3. Left male palp of Draconarius linzhiensis. A Prolateral view B Ventral view C Retrolateral view. Scale bar: equal for A, B, C.

FIGURE 4. Epigyne and habitus of Draconarius linzhiensis. A Epigyne, ventral B Internal genitalia, dorsal C Male habitus, dorsal D Female habitus, dorsal E Female habitus, ventral. Scale bars: equal for A and B, equal for C, D and E.

FIGURE 8. Localities of five Draconarius species from China. 1 Draconarius baibaensis sp. n. 2 Draconarius budanlaensis sp. n. 3 Draconarius linzhiensis; T in upper case indicates the type locality of D. linzhiensis 4 Draconarius yigongensis sp. n. 5 Draconarius yingbinensis sp. n.