Pholcus yuxi Yao & Li

Zhu, Keli, Yao, Zhiyuan, Bai, Xiujuan & Li, Shuqiang, 2018, Five new species of the spider genus Pholcus Walckenaer, 1805 (Araneae: Pholcidae) from China and Thailand, Zootaxa 4377 (2), pp. 235-253: 249-252

publication ID

https://doi.org/10.11646/zootaxa.4377.2.5

publication LSID

lsid:zoobank.org:pub:92AB898C-1B08-44C4-98B6-B0C31E8F9F7D

persistent identifier

http://treatment.plazi.org/id/FC23EE52-FFE0-9468-FF09-FAA75E079AE2

treatment provided by

Plazi

scientific name

Pholcus yuxi Yao & Li
status

sp. nov.

Pholcus yuxi Yao & Li  sp. nov.

FIGS 10–11View FIGURE 10View FIGURE11

Type material. Holotype: MAlE, SHIMEN GORGE (23°58.405'N, 101°31.558'E, ElEVATION 1989 M), AIlAO MOUNTAIN SCENIC SPOT, GASA TOWN, XINPING COUNTY, YUXI, Yunnan, China, 30 MAY 2015, ZGoogleMaps  . CHEN AND Y. LI lEG. Paratypes: 2 MAlES AND 3 FEMAlES, SAME DATA AS HOlOTYPE  .

Etymology. THE SPECIFIC NAME REFERS TO THE TYPE lOCAlITY, AND IS A NOUN IN APPOSITION.

Diagnosis. THIS SPECIES RESEMBlES P. qingyunensis  YAO & LI, 2016 ( SEE DONG et al. 2016B: 27, FIGS 19–20) WITH SIMIlAR MAlE CHElICERAE ( FIG. 11DView FIGURE11), UNCUS ( FIG. 11CView FIGURE11) AND EPIGYNUM ( FIG. 11AView FIGURE11) BUT CAN BE DISTINGUISHED BY THE SMAll, CURVED PROlATERAl APOPHYSIS SUBDISTAllY ( ARROW 1 IN FIG. 10CView FIGURE 10) AND THE STRONGlY SClEROTIZED RETROlATERAl APOPHYSIS DISTAllY ( ARROW 2 IN FIG. 10CView FIGURE 10) ON THE PROCURSUS, BY THE ABSENCE OF BRANCHES ON THE APPENDIX ( FIG. 11CView FIGURE11) AND BY THE NEARlY TRIANGUlAR PORE PlATES ( FIG. 11BView FIGURE11).

Description. Male (holotype): TOTAl lENGTH 4.86 (4.98 WITH ClYPEUS), CARAPACE 1.30 lONG, 1.68 WIDE, OPISTHOSOMA 3.56 lONG, 1.48 WIDE. LEG I: 40.99 (9.61 + 0.68 + 10.19 + 18.27 + 2.24), lEGS II –IV MISSING ( SEE VARIATION); TIBIA I L/D: 68. DISTANCE PME-PME 0.30; DIAMETER PME 0.17; DISTANCE PME-ALE 0.04; DISTANCE AME- AME 0.07; DIAMETER AME 0.14. STERNUM WIDER THAN lONG (0.88/0.83). HABITUS AS IN FIGS 11E –FView FIGURE11. CARAPACE YEllOWISH, WITH BROWN RADIATING MARKS AND BROWN BANDS MARGINAllY; OCUlAR AREA YEllOWISH, WITH BROWN MARKS ANTERIORlY; ClYPEUS AND STERNUM BROWN. LEG I YEllOWISH, BUT DARK BROWN ON PATEllAE, AND WHITISH ON PROXIMAl AND DISTAl PARTS OF FEMORA AND TIBIAE, FEMORA (SUBPROXIMAllY AND SUBDISTAllY) AND TIBIAE (SUBPROXIMAllY AND SUBDISTAllY) WITH DARKER RINGS. OPISTHOSOMA YEllOWISH, WITH SPOTS DORSAllY AND lATERAllY. OCUlAR AREA ElEVATED, WITHOUT EYE- STAlKS. THORACIC FURROW ABSENT. CHElICERAE MISSING, PARATYPE AS IN FIG. 11DView FIGURE11, WITH A PAIR OF PROXIMO-lATERAl APOPHYSES, A PAIR OF DISTAl APOPHYSES, AND A PAIR OF FRONTAl APOPHYSES. PEDIPAlPS AS IN FIGS 10A –BView FIGURE 10; TROCHANTER WITH A VENTRAl APOPHYSIS; FEMUR WITH A DISTINCT VENTRAl PROTUBERANCE; TIBIA WITH A PROJECTION PROlATERAllY; PROCURSUS SIMPlE PROXIMAllY BUT COMPlEX DISTAllY, WITH TWO PROlATERO-DORSAl SPINES (ARROWS IN FIG. 10DView FIGURE 10); UNCUS WITH A SCAlY EDGE; APPENDIX SlIGHTlY CURVED; EMBOlUS WEAKlY SClEROTIZED. RETROlATERAl TRICHOBOTHRIUM OF TIBIA I AT 5% PROXIMAllY; lEG I WITH SHORT VERTICAl SETAE ON TIBIAE, METATARSI AND TARSI, WITHOUT SPINES AND CURVED SETAE; TARSUS I WITH 30 DISTINCT PSEUDOSEGMENTS.

Female: SIMIlAR TO MAlE, HABITUS AS IN FIGS 11G –HView FIGURE11. TOTAl lENGTH 4.87 (5.06 WITH ClYPEUS), CARAPACE 1.40 lONG, 1.39 WIDE, OPISTHOSOMA 3.47 lONG, 2.03 WIDE; TIBIA I: 7.76; TIBIA I L/D: 52. DISTANCE PME-PME 0.25; DIAMETER PME 0.15; DISTANCE PME-ALE 0.04; DISTANCE AME-AME 0.05; DIAMETER AME 0.10. STERNUM WIDER THAN lONG (1.03/ 0.91). OCUlAR AREA WITH BROWN MARKS MEDIAllY AND lATERAllY. EPIGYNUM ( FIG. 11AView FIGURE11) WITH A KNOB. VUlVA ( FIG. 11BView FIGURE11) WITH A SClEROTIZED ANTERIOR ARCH AND TWO NEARlY TRIANGUlAR PORE PlATES.

Variation: TIBIA I IN THE OTHER TWO MAlE PARATYPES: 10.06, 12.30. TIBIA I IN THE OTHER TWO FEMAlE PARATYPES: 8.01, 8.33.

Distribution. CHINA ( YUNNAN, TYPE lOCAlITY; FIG. 12View FIGURE12).

Natural history. THE SPECIES WAS FOUND ON THE ROCK WAllS.

BUT

Butler University

PORE

Point Reyes National Seashore

ARCH

Archbold Biological Station

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Pholcus