Neriene orthocera, Li & Liu & Chen, 2018

Li, Jian Yong, Liu, Jie & Chen, Jian, 2018, A review of some Neriene spiders (Araneae, Linyphiidae) from China, Zootaxa 4513 (1), pp. 1-90: 58-59

publication ID

https://doi.org/10.11646/zootaxa.4513.1.1

publication LSID

lsid:zoobank.org:pub:2A0837FC-0B2B-41B3-9C0E-25D9E73E43A1

persistent identifier

http://treatment.plazi.org/id/8D7387E9-C03B-FFB9-FF1F-F9E4FD15FB01

treatment provided by

Plazi

scientific name

Neriene orthocera
status

new species

Neriene orthocera   new species

Figs 53–55 View FIGURE 53 View FIGURE 54 View FIGURE 55 , 69 View FIGURE 69

Type Material. holotype. Sichuan: Leshan City, Emeishan Mt. , 29.58°N, 103.45°E, 1483m, 21.vii.2003, J.X. Zhang leg., 1M ( HEBU) GoogleMaps   . Paratype. same data as holotype, 3FF ( HEBU) GoogleMaps   .

Diagnosis: This new species is similar to N. poculiforma   in having narrower paracymbium without broad and flattened distal arm, distal suprategular apophysis with hook-shaped tip of dorsal arm and membranous ventral tip, the small terminal apophysis, and the semicircular scape, but can be distinguished from them by the following characters: 1, the embolus simple, without spermduct-tooth and appendage in this new species, but developed, with small spermduct-tooth and cup-shaped embolic end in N. poculiforma   ; 2, the terminal apophysis short, about one and a half coils in this new species, but slightly long, about two and a half coils in N. poculiforma   ; 3, the lateral projection of lamella short, broad, with blunt end in this new species, but long, slender, with sharp end in N. poculiforma   ; 4, atrium opening triangular, with anterior margin almost orthogonal in this new species, but semicircular, with anterior margin notched mesally in N. poculiforma   ( Figs 53–54 View FIGURE 53 View FIGURE 54 , 55 View FIGURE 55 C–E, 56–57, 58C–E).

Description: Male: Total length: 3.71. Carapace: 1.84 long, 1.24 wide. Abdomen: 1.87 long, 1.01 wide. Carapace brown, unmodified. Eyes subequal. AER recurved, AME-AME shorter than AMEd, AME-ALE slightly longer than AMEd; PER straight, PME-PME about PMEd, PME-PLE slightly longer than PMEd; ALE and PLE juxtaposed. Chelicerae brown, furnished with small warty granulations anterolaterally, stridulatory ridges absent, promargin of fang furrow with two teeth, first much bigger than second, retromargin with six equally big teeth. Lengths of legs: I - (1.89+2.17+1.05+-), II 6.58 (1.8+1.95+1.94+0.89), III 5.19 (1.51+1.53+1.51+0.64), IV - (1.96+1.95+1.86+-). Tibia, patella and femur with two dorsal spines each. Tm I: 0.11. Tm IV absent. Abdomen cylindriform, without tubercle, gray with whitish and black spots laterally and dorsally ( Fig. 55B View FIGURE 55 ). Male palp ( Figs 53 View FIGURE 53 A–B, 54): Patella short, with long spine dorsally. Tibia shorter than cymbium, with several long spines on lateral and ventral surfaces, and one prodorsal, two retrodorsal trichobothria. Paracymbium U-shaped, simple, without branches distally. Distal suprategular apophysis straight, rather broad, distally bifurcate, dorsal part with narrow hooked tip, ventral membranous part much broader than dorsal part. Lamella well-developed, with four projections: lateral one short, broad; posterior one slightly short, slender, with sharp end; anterior one large, blunt; dorsal one short. Terminal apophysis small, with about one and a half coils. Embolus simple, without spermducttooth and apical appendage.

Female: Total length: 3.12. Carapace: 1.5 long, 1.01 wide. Abdomen: 1.62 long, 1.01 wide. Carapace brown, unmodified. Eyes subequal. AER recurved, AME-AME shorter than AMEd, AME-ALE slightly longer than AMEd; PER straight, PME-PME slightly shorter than PMEd, PME-PLE about equal with PME-PME; ALE and PLE juxtaposed. Chelicerae brown, furnished with small warty granulations anterolaterally, stridulatory ridges absent, promargin of fang furrow with six teeth, first two much smaller than the others, retromargin with seven equally big teeth. Lengths of legs: I 6.6 (1.74+1.94+1.85+1.07), II 5.66 (1.6+1.67+1.55+0.84), III 4.23 (1.26+1.25+1.14+0.58), IV - (1.72+ - + - + -). Tibia, patella and femur with two dorsal spines each. Tm I: 0.12. Tm IV absent. Other somatic characters same as male ( Fig. 55A View FIGURE 55 ). Epigynum ( Figs 53C View FIGURE 53 , 55C View FIGURE 55 ): atrium opening moderately large, triangular. Lateral depression absent. Scape arising from dorsal wall, with a semicircular tip, which has a small depression at its tip. Vulva ( Figs 53 View FIGURE 53 D–E, 55 D–E): Vulva as long as wide; copulatory grooves started laterally, with about one and a half coils; fertilization grooves enter the spermathecae, with about one and a half coils; turning-points pointing situated laterally, towards sides; spermathecae long, slender, curved and pointing towards sides.

Distribution: China (Sichuan) ( Fig. 69 View FIGURE 69 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Linyphiidae

Genus

Neriene