Rhitymna macilenta, 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

publication ID

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

DOI

https://doi.org/10.5281/zenodo.6178450

persistent identifier

https://treatment.plazi.org/id/03BE8794-FF8A-FFFE-EDED-FDDD7BA9873A

treatment provided by

Plazi

scientific name

Rhitymna macilenta
status

sp. nov.

Rhitymna macilenta View in CoL sp. nov.

Figs 1–2 View FIGURES 1 A – C View FIGURES 2 A – E , 5 View FIGURE 5

Type material: Holotype: male, Mt. Bawangling (19º7.158’N, 109º9.097’E), Hainan Island, China, 24 April 2009, Guo Tang leg. ( IZCAS). Paratypes: 1 male, Mt. Jianfengling (18º33.352’N, 108º50.259’E), Hainan Island, China, 15 April 2009, Guo Tang leg. ( IZCAS); 1 male, Mt. Wuzhi (18º53.835’N, 109º41.889’E), Hainan Island, China, 9 April 2009, Guo Tang leg. ( IZCAS).

Etymology. The specific name is derived from the Latin adjective macilentus, -a, -um, meaning “macilent”, referring to the gracile body and legs of this spider; adjective.

Diagnosis. This new species can be distinguished from other Rhitymna species by the pale body and the small tegulum (only 1/3 the length of cymbium). Moreover, in ventral view parts of subtegulum are clearly visible prolatero-proximally ( Figs 1–2 View FIGURES 1 A – C View FIGURES 2 A – E ).

Description. Male (holotype): Measurements (in mm): PL 3.7, PW 2.9, AW 1.7, PH 0.8, OL 4.3, OW 2.3. Eyes: AME 0.24, ALE 0.20, PME 0.17, PLE 0.21, AME–AME 0.11, AME–ALE 0.09, PME–PME 0.38, PME– PLE 0.19, AME–PME 0.21, ALE–PLE 0.14, CH AME 0.04, CH ALE 0.02. Leg and palp measurements: Pp 6.5 (2.2, 0.8, 1.4, -, 2.1), I 29.8 (7.6, 1.3, 9.2, 9.7, 2.0), II 33.1 (8.5, 1.4, 10.3, 11.0, 1.9), III 16.1 (4.8, 1.0, 4.3, 4.8, 1.2), IV 25.8 (.6.8, 1.3, 8.4, 8.2, 1.1). Leg formula: II-I-IV-III. Spination: Pp 210, 0 0 0, 1121; Fe I–II 232, III 131, IV 231; Pa I–IV 000; Ti I–II 0 408, III–IV 2224; Mt I–IV 2024. Chelicerae with 3 anterior teeth and 5 posterior teeth, with the proximal tooth of the posterior cheliceral teeth being the largest. Color: Prosoma with light yellow color, opisthosoma whitish. Anterior row of eyes located in a dark black band. Legs very long with black spine patches. Dorsal opisthosoma with two pairs of white patches laterally, with scattered pink spots medially in the holotype (without spots in the paratyes) ( Fig. 2A View FIGURES 2 A – E ).

Palp as in diagnosis. Tegulum small, only 1/3 the length of cymbium, with two apophyses located laterally. Parts of subtegulum are clearly visible prolatero-proximally in ventral view. Embolus arising in a 9-o’clock-position on the tegulum, with a distinct prolateral embolic indentation, without embolic apophysis, with a short and sickleshaped distal end. Sperm duct hardly visible in a ventral view. RTA simple, apically tapered in lateral view, with a small apophysis basally. Cymbium slightly longer than tibia, with a retrolaterally indented tip ( Figs 1 View FIGURES 1 A – C , 2B–E View FIGURES 2 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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