Draconarius lingdang K. Liu, J. Liu & X. Xu, 2021

Liu, Ji-he, Xiao, Yong-hong, Zhang, Meng-zhen, Xu, Xiang & Liu, Ke-ke, 2021, Four new coelotine species (Araneae, Agelenidae, Coelotinae) from South China, with the first description of the male of Coelotes septus Wang, Yin, Peng & Xie, 1990, ZooKeys 1029, pp. 93-112 : 93

Draconarius lingdang K. Liu, J. Liu & X. Xu sp. nov. Figures 3 , 4

Material examined.

Holotype ♂, China, Jiangxi Prov., Ji’an City, Jinggangshan County Level City , Ciping Town , Xiajing Village , Shuikou Scenic Spot , 26°33'04.83"N, 114°27'42.83"E, 898 m, 1 Dec. 2013, Ke-ke Liu et al. leg . Paratype 1 ♀, the same data as holotype .

Etymology.

The name comes from the Chinese word Draconarius lingdang , meaning bell, referring to the shape of the spermathecae as seen through the ventral cuticle; noun in apposition.

Diagnosis.

The male of this species is similar to that of D. potanini (Schenkel, 1963) in having the whip-like embolus with two turns in the anterior part and the absence of a patellar apophysis, but differs by the broad distal groove of conductor (vs. narrow in D. potanini ) and the triangular and sharp retrolateral tibial apophysis (vs. broad and blunt in D. potanini ) (Fig. 3C-E ). The male of this species also resembles those of D. peregrinus Xie & Chen, 2011 by its long conductor with a triangular distal groove and the absence of a patellar apophysis, but can be separated from it by the embolus extending along the inner margin of cymbium and the distal part with two turns (vs. extending along ectal margin of cymbium and without turn in D. peregrinus ) (Fig. 3C-E ). The female of this species resembles those of D. peregrinus in the transparent copulatory ducts wrapping around spermathecae, but differs by the short pocket-shaped epigynal teeth (vs. horn-like in D. peregrinus ), and the oval spermathecae (vs. elongated ellipsoid in D. peregrinus ) (Fig. 4C, D ).

Description.

Male. Habitus as in Fig. 3A, B . Total length 6.63. Carapace 3.16 long, 2.10 wide. Eye sizes and interdistances: AME 0.09; ALE 0.14; PME 0.14; PLE 0.18; AME-AME 0.06; AME-ALE 0.07; PME-PME 0.08; ALE-ALE 0.34; PME-PLE 0.10; PLE-PLE 0.45; ALE-PLE 0.03; AME-PME 0.05; AME-PLE 0.21. MOA: 0.33 long; 0.22 anterior width, 0.35 posterior width. Chelicerae with three promarginal teeth (median largest) and two retromarginal teeth (distal larger). Leg measurements: I 7.30 (1.98, 0.88, 1.94, 1.73, 0.77); II 5.55 (1.14, 0.93, 1.4, 1.3, 0.78); III 5.92 (1.01, 0.73, 1.53, 1.46, 1.19); IV 7.24 (1.52, 0.95, 2.33, 1.55, 0.89). Abdomen 2.96 long, 1.90 wide.

Coloration. Carapace yellow-brown, posteriorly with dark radial stripes. Chelicerae red-brown. Endites and labium dark yellow-brown. Sternum yellow-brown. Legs yellow. Abdomen dark brown, dorsally with five pale chevron stripes on sub-medial part.

Palp (Fig. 3C-E ). Femur and patella without apophysis. Tibia with triangular ventrolateral and short retrolateral apophyses. VTA extending beyond half of tibia, strongly sclerotized. RTA small, <1/3 × length of ventrolateral one. Cymbial furrow slightly <1/2 cymbial length in retrolateral view. Median apophysis spoon-like in retrolateral view, located between the base of embolus and conductor; conductor extending transversally, apical part curved forward towards median apophysis in retrolateral view, with a curved furrow; basal part with a strong, sclerotized dorsal apophysis, shorter than the length of transverse conductor; embolus broad, originates at the 6 o’clock position, coiled around the margin of cymbium and posteriorly convoluted and embedded in the furrow of conductor.

Female (Paratype). Habitus as in Fig. 4A, B . Total length 8.65. Carapace 3.42 long, 2.12 wide. Eye sizes and interdistances: AME 0.13; ALE 0.16; PME 0.14; PLE 0.15; AME-AME 0.07; AME-ALE 0.19; PME-PME 0.08; ALE-ALE 0.36; PME-PLE 0.10; PLE-PLE 0.55; ALE-PLE 0.06; AME-PME 0.07; AME-PLE 0.19. MOA: 0.29 long; 0.25 anterior width, 0.36 posterior width. Chelicerae with three promarginal teeth (proximal smallest, median largest) and two retromarginal teeth (proximal larger). Leg measurements: I 6.72 (1.3, 0.96, 1.91, 1.6, 0.95); II 6.2 (1.49, 0.83, 1.59, 1.43, 0.86); III 5.68 (1.14, 0.86, 1.27, 1.56, 0.85); IV 7.64 (1.26, 0.98, 1.92, 2.44, 1.04). Pedicel 2.84. Abdomen 4.63 long, 2.95 wide.

Epigyne (Fig. 4C, D ). Atrium, broad,> 3 × wider than its length, labium-shaped, anterior margin near the apex of teeth, posteromedial part relatively straight. Copulatory openings located at postero-lateral of the atrium. Epigynal teeth flat, very short, pocket-shaped, separated by less than the maximum length of atrium. Copulatory ducts broad, transparent, originating postero-laterally, extending antero-medially around spermathecae, then back, connecting with anterior part of spermathecae. Spermathecae sac-shaped, the distance between them more than their widths. Fertilization ducts located at the posterior part of the spermathecae, curved postero-laterally.

Comments.

Patellar apophysis is absent in the male palp of this species, as well as in Draconarius aspinatus (Wang, Yin, Peng & Xie, 1990), D. peregrinus Xie & Chen, 2011, D. potanini , D. rufulus (Wang, Yin, Peng & Xie, 1990), D. subabsentis Xu & Li, 2008 and D. tiantangensis Xie & Chen, 2011, all recorded from China. It seems that they are different from most Draconarius which have a clear PA in male palp. All of them are likely to belong to the same species group.

Distribution.

Known only from the type locality in Jiangxi Province, China (Fig. 8 ).

Figures

Figure 3. Draconarius lingdang sp. nov., male holotype A habitus, dorsal view B same, ventral view C palp, prolateral view D same, ventral view E same, retrolateral view. Scale bars: 1 mm (A, B); 0.1 mm (C-E). Abbreviations: CF - cymbial furrow, Con - conductor, DAC - dorsal apophysis of conductor, Em - embolus, MA - median apophysis, RTA - retrolateral tibial apophysis, VTA - ventrolateral tibial apophysis.

Figure 4. Draconarius lingdang sp. nov., female paratype A habitus, dorsal view B same, ventral view C epigyne, ventral view D vulva, dorsal view. Scale bars: 1 mm (A, B); 0.1 mm (C, D). Abbreviations: At - atrium, CD - copulatory duct, CO - copulatory opening, ET - epigynal teeth, FD - fertilization duct, Spe - spermatheca.

Figure 8. Type localities of Coelotes septus Wang et al., 1990, Draconarius lingdang sp. nov., D. substrophadatus sp. nov., Orumcekia cipingensis sp. nov., and Tonsilla shuikouensis sp. nov.