Rhitymna tangi, Quan, Dan & Liu, Jie, 2012

Quan, Dan & Liu, Jie, 2012, Two new Rhitymna species (Araneae: Sparassidae) from Hainan Island, China, Zootaxa 3200, pp. 61-68 : 62-65

publication ID

https://doi.org/ 10.5281/zenodo.213959

DOI

https://doi.org/10.5281/zenodo.6178452

persistent identifier

https://treatment.plazi.org/id/03BE8794-FF8A-FFFB-EDED-F9787BA986FB

treatment provided by

Plazi

scientific name

Rhitymna tangi
status

sp. nov.

Rhitymna tangi View in CoL sp. nov.

Figs 3–5 View FIGURES 3 A – C View FIGURES 4 A – E View FIGURE 5

Type material: Holotype: male, Mt. Diaoluo (18º41.445’N, 109º52.410’E), Hainan Island, China, 18 April 2009, Guo Tang leg. ( IZCAS). Paratypes: 1 male, Mt. Diaoluo (18º39.955’N, 109º55.811’E), Hainan Island, China, 15 April 2009, Guo Tang leg. ( IZCAS); 1 male, Mt. Limu (19º8.541’N, 109º43.233’E), Hainan Island, China, 15 August 2010, Jie Liu and Haiqing Ren leg. (HBU).

Etymology. The specific name is dedicated to Mr Guo Tang for his kind help on the spiders collection; noun (name) in genitive case.

Diagnosis. This new species is similar to R. pinangensis (Thorell, 1891) in having a simple RTA and pointed embolus end, but can be distinguished from it by the following characters: 1. Embolus of this new species arising in 10-o’clock-position on the tegulum (3-o’clock-position in R. pinangensis ); 2. Embolus without apophysis in this new species (with apophysis in R. pinangensis ); 3. Embolus tip of this new species short ( Figs 3 View FIGURES 3 A – C , 4B–E View FIGURES 4 A – E ), with less than one distal coil (with 1.1 distal coils in R. pinangensis ).

Description. Male (holotype): Measurements (in mm): PL 6.5, PW 6.8, AW 4.3, PH 2.2, OL 8.4, OW 4.5. Eyes: AME 0.42, ALE 0.38, PME 0.31, PLE 0.36, AME–AME 0.25, AME–ALE 0.46, PME–PME 0.55,PME– PLE 0.86, AME–PME 0.24, ALE–PLE 0.35, CH AME 0.22, CH ALE 0.21. Leg and palp measurements: Pp 8.7 (2.9, 1.2, 1.3, -, 3.3), I 35.7 (9.4, 3.4, 10.3, 9.9, 2.7), II 37.5 (10.3, 3.5, 10.8, 10.3, 2.6), III 23.2 (7.1, 2.6, 6.2, 5.3, 2.0), IV 28.8 (8.9, 2.4, 7.9, 7.4, 2.2). Leg formula: II-I-IV-III. Spination: Pp 131, 100, 1020; Fe I–III 323, IV 322; Pa I–III 101, IV 100; Ti I–IV 2226; Mt I–III 2024, IV 2026. Chelicerae with 3 anterior teeth and 4 posterior teeth, with the proximal tooth of the posterior cheliceral teeth being the largest. Color: Prosoma reddish brown, legs yellowish brown. Cephalic region and chelicerae darker. Opisthosoma yellow, dorsally with pattern of three dark longitudinal stripes ( Fig. 4A View FIGURES 4 A – E ).

Palp as in diagnosis. Embolus arising in a 10-o’clock-position on the tegulum, without embolic apophysis, with a distinct prolateral embolic indentation (EI in Figs. 3B View FIGURES 3 A – C , 4D View FIGURES 4 A – E ), with a short and pointed distal end. Sperm duct broad, almost U-shaped in a ventral view. RTA simple, apically tapered in lateral view. Cymbium distinctly longer than tibia ( Figs 3 View FIGURES 3 A – C , 4B–E View FIGURES 4 A – E ).

Female: Unknown.

Distribution. China (Hainan Island) ( Fig. 5 View FIGURE 5 ).

IZCAS

Institute of Zoology, Chinese Academy of Sciences

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Sparassidae

Genus

Rhitymna

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