Draconarius guizhouensis ( Peng, Li & Huang, 2002 )

Wang, Xiaoxiao, Wu, San’An & Li, Shuqiang, 2012, Notes on two Draconarius species (Araneae, Agelenidae) from Guizhou, China, Zootaxa 3302, pp. 61-65: 61-64

publication ID

10.5281/zenodo.280941

persistent identifier

http://treatment.plazi.org/id/5C0A87C9-FF9E-FFBB-FF73-E64BFD75F9FF

treatment provided by

Plazi

scientific name

Draconarius guizhouensis ( Peng, Li & Huang, 2002 )
status

comb. n.

Draconarius guizhouensis ( Peng, Li & Huang, 2002)  comb. n.

Figs 1–3View FIGURE 1View FIGURE 2View FIGURE 3

Coelotes guizhouensis Huang et al. 2002: 79  , figs 3–4

Draconarius semilunatus Zhu & Chen 2009: 184  , figs 1–2. syn. n.

Material examined. China: Guizhou: 2 Ƥ 33 ( IZCASAbout IZCAS), Anshun County, Qiyanqiao Town, Shanfengqiao Village, Shanfengqiao Cave [26 ° 17.053 ´N, 106 °02.531´E, altitude 1330 m], 5 November 2011, Zuwei Zha & Zhigang Chen leg.; 1 Ƥ, holotype ( IZCASAbout IZCAS), same locality, 14 January 2001, Daohong Li leg.

Diagnosis. Females of D. guizhouensis  can be distinguished from all other Draconarius  except D. spirallus  ( Xu & Li 2007: 347, fig 7 C) by the large, initially elongated longitudinally then spiraled laterally copulatory ducts; but can be distinguished from D. spirallus  by the slightly convoluted distal copulatory ducts (while distal copulatory ducts are highly convoluted in D. spirallus  ); the separated bases of copulatory ducts (bases of copulatory ducts fused in D. spirallus  ). Males of this species can be distinguished from all other Draconarius  except D. altissimus  , D. anthonyi  , D. argenteus  , D. aspinatus  , D. beloniforis  , D. bituberculatus  , D. carinatus  , D. catillus  , D. chaiqiaoensis  , D. colubrinus  , D. exilis  , D. linxiaensis  , D. magnarcuatus  , D. neixiangensis  , D. nudulus  , D. papai  , D. paraspiralis  , D. rufulus  , D. spinosus  , D. subabsentis  , D. tiantangensis  , D. zonalis  by the absence of a patellar apophysis; but can distinguished from the 22 species by the presence of a small paraconductor ( Figs 1View FIGURE 1 C, 2 A).

Description. Male. Medium sized coelotine. Total body length 6.15. Prosoma 2.90 long, 2.00 wide; opisthosoma 2.85 long, 1.81 wide. Dorsal shield of prosoma yellow, cephalic region narrow. Median furrow distinct, longitudinal. Radial groove clear. Anterior eye row recurved, posterior eye row almost straight from above view. Eye sizes and interdistances: AME 0.05, ALE 0.14, PME 0.16, PLE 0.16; AME–AME 0.04, AME–ALE 0.02, PME– PME 0.08, PME–PLE 0.08. Chelicerae brown, with 3 promarginal and 2 retromarginal teeth. Endites, labium and sternum yellow. Legs light brown, without distinct bands. Leg measurements: I 13.00 (3.30, 1.10, 3.30, 3.20, 2.10); II 11.75 (3.10, 1.00, 2.75, 3.00, 1.90); III 11.05 (2.75, 1.00, 2.40, 3.10, 1.80); IV 14.50 (3.70, 1.00, 3.40, 4.40, 2.00). Leg formula: IV-I-II-III. Opisthosoma yellow, longer than wide, without distinct patterns.

Pedipalpus ( Figs 1–2View FIGURE 1View FIGURE 2) without patellar apophysis; RTA long, occupying most of tibia, with distal end slightly extended beyond tibia; lateral tibial apophysis small, pointing dorsally; cymbial furrow slightly shorter half of cymbial length, with distinct dorsal edge; conductor moderately long, with small paraconductor between conductor and conductor dorsal apophysis; conductor dorsal apophysis broad; conductor lamella moderately developed; embolus arising posteriorly at approximately 8 –o’clock-position, long, linear; median apophysis spoon-shaped, with distal end not sharply pointed.

Female. Total body length 6.20–8.24. Holotype was measured. Prosoma 3.52 long, 2.56 wide; opisthosoma 4.48 long, 2.56 wide. Dorsal shield of prosoma brown. Eye sizes and interdistances: AME 0.07, ALE 0.15, PME 0.14, PLE 0.18; AME–AME 0.06, AME–ALE 0.03, PME–PME 0.15, PME–PLE 0.14. Chelicerae with 3 promarginal and 2 retromarginal teeth. Leg measurements: I 12.47 (3.26, 1.25, 3.00, 2.95, 2.01); II 11.56 (3.10, 1.20, 2.55, 2.83, 1.88); III 10.64 (2.60, 1.14, 2.31, 2.84, 1.75); IV 13.95 (3.40, 1.25, 3.24, 4.13, 1.93). Leg formula: IV-I-II-III. Other characters as in male.

Epigynum  ( Fig. 3View FIGURE 3) with horn-shaped epigynal teeth, widely separated from atrium; atrium small, situated posteriorly ( Fig. 3View FIGURE 3 A); spermathecae global, widely separated from each other; copulatory ducts large, with separated bases, initially elongated longitudinally then slightly spiraled laterally ( Fig. 3View FIGURE 3 B).

Natural history. Draconarius guizhouensis  known only inhabit low-light area of the Shanfengqiao Cave and spin webs under stones.

Justification for generic placement. The species is transferred to Draconarius  based on the following characters: the presence of two retromarginal teeth (3 retromarginal teeth in Coelotes  ); the patellar apophysis absent (broad in Coelotes  and most Draconarius  ); embolus long and extending posteriorly to at least the distal margin of the tibia (embolus moderately long, prolateral in origin in most Coelotes  species); median apophysis elongated (short and round in Coelotes  ); copulatory ducts large (short and narrow in Coelotes  ) ( Wang 2002). Draconarius guizhouensis  might be confused with Eurocoelotes  due to the lack of a patellar apophysis but can be distinguished by the anteriorly situated epigynal teeth (posterior in Eurocoelotes  ) ( Wang 2002) are consistent with Draconarius  , not Eurocoelotes  .

Distribution. Known only from the type locality.

IZCAS

Institute of Zoology, Chinese Academy of Sciences

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Amaurobiidae

Genus

Draconarius

Loc

Draconarius guizhouensis ( Peng, Li & Huang, 2002 )

Wang, Xiaoxiao, Wu, San’An & Li, Shuqiang 2012

2012
Loc

Coelotes guizhouensis Huang et al. 2002 : 79

Huang 2002: 79

Loc

Draconarius semilunatus

Zhu 2009: 184