Leptonetela unispinosa (Yin, Wang & Wang, 1984) Liu & Huang & Xu & Yin, 2020

Liu, Jinxin, Huang, Zongguang, Xu, Xiang & Yin, Haiqiang, 2020, Redescription of types of three species of Leptonetidae Simon, 1890 from China (Arachnida, Araneae), ZooKeys 1000, pp. 1-17 : 1

Leptonetela unispinosa (Yin, Wang & Wang, 1984) comb. nov. Figures 7 , 8

Leptoneta unispinosa Yin et al. 1984: 368, fig. 3a-d (♂); Song 1987: 107, fig. 70 (♂); Song et al. 1999: 51, fig. 21P-Q (♂, reproduction of the original figure); Yin et al. 2012: 159, fig. 28a-d (♂).

Material examined.

Holotype ♂ ( HNU, Lept- Leptonetela -0002-001 ): China, Hunan Province, Changsha City, Mountain Yuelu , XI.1980, Zhitong Wang leg (information on the label of the type) [Mountain Yuelu: 112°58'N, 28°12'E].

Diagnosis.

The male of Leptonetela unispinosa ( Yin et al., 1984), comb. nov. is similar to that of Leptonetela quinquespinata (Chen & Zhu, 2008) in having an A-shaped median apophysis and the embolus curved distally (compare Fig. 8A with Wang and Li 2011: fig. 47D), but differs by the number of eyes (six eyes in this species vs eyes completely absent in Leptonetela quinquespinata ) and the arrangement of spines on the retrolateral tibia (five spines including three in a longitudinal row and two in a transverse line in this species vs six spines almost in a longitudinal row in Leptonetela quinquespinata ) (compare Figs 7A , 8D with Wang and Li 2011: fig. 44A, D).

Description.

Holotype. Male. Body (Fig. 7A, B ) length 1.73, carapace 0.83 long, 0.66 wide, abdomen 1.00 long, 0.66 wide (data from original description by Yin et al. 1984: 367). Carapace brown (Fig. 7A ). Six eyes, ALE, and PLE connected to each other by black bases, PME separated from ALE and PLE. Thoracic median groove short, brown, needle-shaped; single shallow pit with brown margin in front of thoracic median groove. Cervical grooves and radial furrows deep brown, indistinct. Chelicerae brown, with nine promarginal and five small retromarginal teeth (all teeth in the same row almost equal in size) (Fig. 8B ). Endites brown. Labium deep brown, fused to sternum. Sternum brown, peltate. Legs brown; measurements: I (1.20, 0.26, 1.23, missing, missing); II 3.37 (0.83, 0.24, 0.90, 0.80, 0.60); III 3.00 (0.81, 0.23, 0.73, 0.73, 0.50); IV 4.47 (1.41, 0.24, 1.16, 1.00, 0.66) (data from original description by Yin et al. 1984: 367). Abdomen pale brown, ovoid, with five broad, reddish brown bands dorsally (Fig. 7B ).

Male palp as illustrated in Figs 7C-E , 8A, C, D . Femur without any strong spines. Patella with dorsal spine distally. Trichobothria not to be found on dorsal tibia, although usually present in other congenerics (it is very possible that trichobothria were broken off body and lost). Tibia with one long thin prolateral spine basally and five retrolateral spines (three spines arranged in longitudinal row along tibia, first one near basal end especially strong; other two arranged in transverse line along distal margin of tibia). Tarsus sunken and contracted slightly at middle position resulting in forming earlobe-shaped process distally (Fig. 8D ). One distal short spine, one ventral long spine, one long retrolateral spine, and one long prolateral spine present on distal half of tarsus (Figs 7D, E , 8C, D ). Palpal bulb oval, smooth. Conductor lamellar, membranous, slightly wide. Embolus membranous, slightly twisted towards the prolateral side. Median apophysis A-shaped (Figs 7C , 8A ). Prolateral lobe medium-sized, elliptical (Fig. 8C ).

Distribution.

Only known from the type locality, Hunan, China (Fig. 9 ).

Figures

Figure 7. Leptonetela unispinosa (Yin et al., 1984), comb. nov., holotype male A carapace, dorsal view B abdomen, dorsal view C palpal bulb, ventral view D palp, prolateral view E palp, retrolateral view.

Figure 8. Leptonetela unispinosa (Yin et al., 1984), comb. nov., holotype male A palpal bulb, ventral view B chelicera, retrolateral view C palp, prolateral view D palp, retrolateral view. Abbreviations: Co, conductor; E, embolus; MA, median apophysis; PL, prolateral lobe; TS, tibial spur.

Figure 9. Locality records for Leptonetela trispinosa comb. nov., Leptonetela unispinosa comb. nov. and Leptoneta monodactyla.