Phaeacius yixin, Zhang & Li, 2005
publication ID |
https://doi.org/ 10.5281/zenodo.4619118 |
persistent identifier |
https://treatment.plazi.org/id/03DE670A-F556-6550-960D-90B8FD47FD38 |
treatment provided by |
Carolina |
scientific name |
Phaeacius yixin |
status |
sp. nov. |
Phaeacius yixin View in CoL , new species
( Fig. 3 View Fig A-E)
Materials examined. – Holotype: Male ( ZRC •ARA•503), Institute of Tropical Forest (18°41.890'N 108°47.373'E), Jianfengling, Hainan, China, coll. Y. X. Li, 13 Dec.2003. GoogleMaps
Non-types: 2 female juveniles ( ZRC •ARA•504), same data as holotype GoogleMaps ; 1 male juvenile ( ZRC •ARA•505), Institute of Tropical Forest (18°41.890'N 108°47.373'E), Jianfengling, Hainan, China, coll. D. Li, 12 Dec.2003 GoogleMaps .
Diagnosis. – The new species resembles Phaeacius malayensis Wanless, 1981 , but can be easily distinguished from the latter by the pronounced apophysis between the ventral and retrolateral apophyses almost triangular, and the different shape of retrolateral tibial apophysis ( Fig. 3D, E View Fig ). It differs from Phaeacius yunnanensis Peng & Kim, 1998 (Peng & Kim, 1998: 411-413, Figs. 1-3 View Fig View Fig View Fig ) in the shape of retrolateral tibial apophysis of male palp and the presence of pronounced apophysis between ventral and retrolateral apophyses ( Fig. 3D, E View Fig ).
Description. – Males. Length of holotype 8.64: cephalothorax 4.24 long, 3.20 wide, 1.76 high; abdomen 4.40 long, 2.48 wide. Carapace ( Fig. 3A View Fig ) deep brown, red brown behind eyes region and earthy yellow laterally, with many short fine hairs. Eye sizes: AME 0.59, ALE 0.31, PME 0.22, PLE 0.34. First eye row 2.12 wide, second row 1.88 wide, third eye row 2.04 wide, eye area 1.97 long. Clypeus height 0.09. Chelicerae (Fig. C) red brown, with 3 promarginal and 5 retromarginal teeth. Endites and labium red brown. Sternum and legs yellow. Legs with a few dorsal dark stripes and many long spines. Spination of leg I: metatarsi v 2-0- 0, p 1-1-0, r 1-1-2, d 0-1-0; tibiae v 2-3-2, p 1-0-1, r 1-0-1, d 1-1-1; patellae p 1-0-0, r 1-0-0; femora p 0-1-1, r 0-0-1, d 0-2-2. Measurements of palp and legs: palp 3.96 (1.28+0.56+0.40+1.72); I 9.57 (2.63+3.63+2.25+1.06), II 9.94 (2.88+3.75+2.31+1.00), III 9.81 (2.81+3.50+2.50+1.00), IV 11.20 (3.13+3.88+3.13+1.06). Leg formula: 4231. Abdomen oval, covered with many fine hairs; dorsum earthy yellow, with lateral margins black, centre with a brownish foliform patch; venter gray brown, black in front of genital groove, with two rows of muscle attachment spots from genital groove to spinnerets. Ventral tibial apophysis of male palp ( Fig. 3D, E View Fig ) robust and round, retrolateral apophysis long with a median process, pronounced apophysis between ventral and retrolateral apophysis almost triangular.
Etymology. – The specific name is a noun in apposition taken from the first name of the collector Y. X. Li, who was only 11 years old when he first collected the type specimen.
ZRC |
Zoological Reference Collection, National University of Singapore |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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