Longileptoneta guadunensis Yao & Liu, 2024

Liu, Bin-Lu, Yao, Yan-bin, Jiang, Zi-Min, Xiao, Yong-hong & Liu, Ke-Ke, 2024, Midget cave spiders (Araneae, Leptonetidae) from Jiangxi and Fujian Province, China, ZooKeys 1189, pp. 287-325 : 287

Longileptoneta guadunensis Yao & Liu sp. nov.

Figs 9 , 10 , 28A Vernacular name: 挂墩长弱蛛

Material examined.

Holotype: ♂, China: Fujian Province, Nanping City, Wuyishan County Level City , Xingcun Town , Guadun Village , 27°43'56.88"N, 117°39'30.29"E, 3.X.2023, Y. Yao, J. Gong & M. Wu leg. (Lep-13) . Paratype: 1 ♂, same data as the holotype (Lep-13) .

Diagnosis.

This species is similar to that of Longileptoneta shenxian Wang & Li, 2020 (in Wang et al. 2020: 698, fig. 12A-D) and L. yamasakii Ballarin & Eguchi, 2022 ( Ballarin and Eguchi 2022: 373, figs 1C, 3A-C) in having the banded median apophysis with transparent tip, but can be distinguished from it by the carapace with six eyes (vs absent in L. shenxian ), the tibia with one canine tooth-like apophysis armed with a short straight spine (vs one columnar apophysis, armed with one long, curved spine in L. shenxian and L. yamasakii ) and the wedge-shaped prolateral lobe (vs mastoid in L. shenxian and sub-triangular in L. yamasakii ) (Figs 9C-E , 10D, E ).

Description.

Male (holotype). Habitus as in Fig. 9A, B . Total length 2.32. Carapace 0.86 long, 0.75 wide. Eye sizes and interdistances: ALE 0.08, PME 0.08, PLE 0.08; ALE-PME 0.11, PLE-PLE 0.12, PLE-PME 0.04; AER 0.14, PER 0.18. Clypeus 0.13 high. Chelicerae (Fig. 9B ) with eight promarginal and six retromarginal teeth. Endites with several long spines laterally. Labium sub-rectangular, with several long setae. Sternum (Fig. 9B ) shield-shaped, wider than long, posterior end blunt. Leg measurements: I 8.03 (2.08, 0.28, 2.63, 1.84, 1.20); II 4.73 (1.52, 0.23, 1.28, 0.97, 0.73); III 4.45 (1.17, 0.19, 1.29, 1.08, 0.72); IV 6.08 (1.51, 0.25, 1.98, 1.57, 0.77). Pedicel 0.05. Abdomen 1.42 long, 0.83 wide.

Coloration (Fig. 9A, B ). Carapace yellow to black-brown, with radial dark stripes near submargin. Chelicerae, endites and labium brown. Sternum yellow to dark brown, mottled. Legs yellow, with sparse mottling. Abdomen dorsally yellowish, mottled in lateral and posterior parts; venter brown, mottled.

Palp (Figs 9C-E , 10 ). Femur with three rows of long strong spines ventrally, dorsally, and prolaterally; patella without spine; tibia with two spines: one canine tooth-like apophysis, armed with a short straight spine subapically, and a thick and long spine near the base of anterior one. Cymbium with a constriction subapically. Tip of bulb: one long banded median apophysis, distally furcate; prolateral lobe wedge-shaped, large; conductor membranous, anteriorly curved. Embolus indistinct, with broad base.

Female. Unknown.

Distribution.

Known only from the type locality in Fujian Province, China (Fig. 29 ).

Etymology.

The name is taken from the type locality.

Figures

Figure 9. Longileptoneta guadunensis sp. nov., male holotype A habitus, dorsal view B same, ventral view C palp, prolateral view D same, ventral view, slightly retrolateral E same, retrolateral view. Abbreviations: Con - conductor, Em - embolus, MA - medial apophysis, PL - prolateral lobe. Scale bars: 0.2 mm (A, B); 0.1 mm (C-E).

Figure 10. SEM micrographs of Longileptoneta guadunensis sp. nov., right palp, male holotype A ventral view B tibial apophysis, ventral view C detail of the tip of tibial apophysis, ventral view D detail of tegular apophysis, ventral view E same, ventral view. Abbreviations: Con - conductor, Em - embolus, MA - medial apophysis.

Figure 28. Photographs of living specimens from China. A Longileptoneta guadunensis sp. nov., B L. huboliao sp. nov. C L. jiaxiani sp. nov. D L. letuensis sp. nov. E L. renzhouensis sp. nov. F L. tianmenensis sp. nov. G, H Pararana mingxuani sp. nov.

Figure 29. Records of Falcileptoneta monodactyla (Yin, Wang & Wang, 1984), Leptonetela dawu sp. nov., L. yuanhaoi sp. nov. and L. zuojiashan sp. nov. from Jiangxi; Longileptoneta guadunensis sp. nov., L. huboliao sp. nov., L. jiaxiani sp. nov., L. letuensis sp. nov., L. renzhouensis sp. nov., L. tianmenensis sp. nov., and Pararana mingxuani sp. nov. from Fujian, China.