Draconarius jiangyongensis (Peng, Gong & Kim, 1996)

Chen, Zhuoer, Yin, Haiqiang & Xu, Xiang, 2016, First description of the male of Draconariusjiangyongensis (Peng et al., 1996) (Araneae, Agelenidae), ZooKeys 601, pp. 41-48 : 42-46

Taxon classification Animalia Araneae Agelenidae

Draconarius jiangyongensis (Peng, Gong & Kim, 1996) Figs 1, 2, 3, 4

Coelotes jiangyongensis Peng et al. 1996: 19, figs 7-9 (description and illustration of ♀); Song et al. 1999: 376, figs 220 J–K (♀ figures reproduced from Peng et al. 1996).

Draconarius jiangyongensis : Wang 2003: 536, figs 36 A–B, 96B (transferred from Coelotes ); Yin et al. 2012: 1010, figs 521 a–c (redescription and illustration of ♀).

Type material examined.

Holotype, 1♀ (HNU), Jiangyong County, Hunan Province, China, 1 October 1991, Liansu Gong leg.; paratypes, 4♀ (HNU), same data as holotype.

Additional material examined.

Hunan Province, Xining County, Langshan National Geopark: 2♀ (HNU), Tianyixiang (26°21.218'N, 110°48.246'E, 590m), 21.11.2014; 3♀, 2♂ (HNU), same locality as above (26°21.447'N, 110°48.190'E, 560 -640m), 22.11.2014; 1♀, 1♂ (HNU), Cave Feiliandong (26°21.447'N, 110°47.921'E, 400m), 23.11.2014; 1♀ (HNU), Bajiaozhai (26°16.354'N, 110°44.308'E, 820m), 24.11.2014; 5♀, 8♂ (HNU), Peak Lajiaofeng (26°23.135'N, 110°48.464'E, 400-640m), 27.11.2014. All specimens are collected by hand picking by Haiqiang Yin, Cheng Wang, Bing Zhou, Jiahui Gan and Yuhui Gong.

Diagnosis.

Female of Draconarius jiangyongensis can be distinguished from other Draconarius by the presence of a vase-shaped septum of epigyne (Figs 2B, 3E), the anteriorly originating and laterally extending copulatory ducts, and the spermathecae widely separated basally and contiguous distally (Figs 2B, C, 3E, F). The male of Draconarius jiangyongensis is similar to Draconarius yadongensis (Hu & Li, 1987) in having a simple conductor, an embolus arising at approximately 10 o’clock (left palp) and the short cymbial furrow (Figs 1C, D, 3B, C), but can be distinguished from the latter by the shape of the conductor (the conductor axe-shaped, with a wrinkly surface in Draconarius jiangyongensis , but narrow with a sharp end tip and broad dorsal edge in Draconarius yadongensis ) (Figs 1D, F, 3B, D).

Description.

Male. Total length 8.7. Carapace 4.1 long, 3.1 wide; opisthosoma 4.5 long, 2.9 wide. Clypeus height 0.15. Cephalic part much elevated from the tho racic region. Cervical and radial grooves greyish-black (Fig. 1A). Eye sizes and interdistances: ALE 0.18, AME 0.20, PLE 0.16, PME 0.16; ALE-AME 0.04, AME-AME 0.06, PLE-PME 0.08, PME-PME 0.16; MOA 0.54 long, anterior width 0.58, posterior width 0.70 (Fig. 1A). Labium reddish-brown, 0.6 long, 0.6 wide. Sternum brown, slightly longer than wide (2.3 long, 1.9 wide). Chelicerae with three promarginal and four retromarginal teeth. Leg measurements: I 18.0 (4.5, 6.0, 4.9, 2.6), II 15.8 (4.2, 5.3, 4.2, 2.1), III 14.0 (3.7, 4.3, 4.0, 2.0), IV 17.8 (4.5, 5.7, 5.4, 2.2). Opisthosoma with dorsal pattern composed of several chevrons patterns (Fig. 1A).

Male palp (Figs 1 B–F, 3 A–D): femur nearly 3/4 length of cymbium; patellar apophysis large; retroventral tibial apophysis moderately long, about 2/3 length of tibia; lateral tibial apophysis small, widely separated from retrolateral tibial apophysis; cymbial furrow short, less than 1/3 length of cymbium; conductor broad, axe-shaped, with a wrinkly surface; dorsal conductor apophysis large; median apophysis large, with a sharp end in ventral view; embolus long and flat, arising at approximately 10 o’clock and encircling for about 180 degrees around bulb.

Female. Total length 8.60. Carapace 4.0 long, 2.9 wide; opisthosoma 4.6 long, 3.1 wide. Clypeus height 0.14. Eye sizes and interdistances: ALE 0.2, AME 0.22, PLE 0.18, PME 0.18; ALE-AME 0.04, AME-AME 0.08, PLE-PME 0.10, PME-PME 0.20; MOA 0.52 long, anterior width 0.58, posterior width 0.66. Labium greyish brown, 0.60 long, 0.50 wide. Sternum brown, slightly longer than wide (2.10 long, 1.80 wide). Leg measurements: I 14.3 (3.8, 5.0, 3.5, 2.0), II 12.2 (3.5, 4.2, 3.0, 1.5), III 10.8 (3.0, 3.6, 2.9, 1.3), IV 14.1 (4.0, 4.8, 3.5, 1.8). Promarginal and retromarginal teeth of chelicera and the dorsal pattern of opisthosoma are the same as male (Fig. 2A).

Epigyne (Figs 2B, C, 3E, F): teeth triangular, large and thin, located anterolaterally; septum large, with the base much wider than the stem; atrium divided into two parts by septum; the bases of spermathecae highly convoluted and separated about two times their diameter from each other, and the distal ends of spermathecae contiguous; copulatory ducts short, anteriorly situated and laterally extending.

Remark.

The Draconarius and Coelotes are two most species-rich genera in the Coelotinae, with 244 and 183 species described to date, respectively. Most of those species were described based on only the male or female. As a result, some might be incorrectly placed. This species described here is more likely to be a member of the genus Coelotes than Draconarius based on the following combination of characters: the large epigynal teeth, the atrium (atrium divided into two parts by septum) and short copulatory ducts in the female; the large patellar apophysis, the short and prolaterally originating embolus and the short cymbial furrow (less than 1/3 length of the cymbium) in the male. It differs from Coelotes atropos (Walckenaer, 1830) by the presence of septum. It also differs from the type species and many other species of Draconarius (for example, Draconarius guizhouensis (Peng, Li & Huang, 2002), Draconarius latellai Marusik & Ballarin, 2011 and so on) by the number of cheliceral teeth (this species with three promarginal and four retromarginal teeth while the type species and many other species of Draconarius have three promarginal and two retromarginal teeth.)

Distribution.

China (Hunan).