A review of the genus Pholcus (Araneae: Pholcidae) from China
Author
Zhang, Feng
Author
Zhu, Ming-Sheng
text
Zootaxa
2009
2009-03-16
2037
1
1
114
https://biotaxa.org/Zootaxa/article/view/zootaxa.2235.1.2
journal article
10.11646/zootaxa.2235.1.2
11755334
5317608
Pholcus zham
Zhang, Zhu & Song, 2006
(
Fig. 62
)
Pholcus zham
Zhang, Zhu & Song 2006: 197
, f. 9–16.
Diagnosis.
This species resembles
P. medog
, but can be readily distinguished from it by the shape of the palpal uncus (
Fig. 62F
), by the unsplit appendix (
Fig. 62F
), by the palpal femur with a dorsal projection retrolaterally (
Fig. 62G
), and by the chelicerae with a pair of unsclerotized round apophyses proximocentrally (
Fig. 62D
).
Redescription.
Male (
holotype
): total body length 6.3: cephalothorax 1.6 long, 1.7 wide; abdomen 4.8 long, 1.3 wide. Leg I: 56.6 (13.8+1.2+12.8+25.7+3.2), tibia II: 9.0, tibia III: 6.0, tibia IV: 7.8; tibia I L/D: 75. Prosoma shape as in
Fig. 62C
. Carapace short, broad and almost circular, ochre, with brown marks broadly connecting to ocular area. Cephalic region raised, with a brown longitudinal mark centrally, ocular area yellow. Clypeus 0.80, ochre, without marks. Each eye triad on the top of a relatively long eye-stalk. Distance AME–AME 0.07. Diameter AME 0.11, ALE 0.22, PME 0.16, PLE 0.17. Chelicerae as in
Fig. 62D
, with pair of black apophyses distally, and two pairs of unsclerotized rounded apophyses proximolaterally and proximocentrally respectively. Labium and endites gray. Sternum dark gray, with roughly 5 pairs of irregular yellow patches on it as in
Fig. 62E
. Femora, patellae and tibiae ochre, with dark rings, metatarsi and tarsi light ochre. Abdomen cylindrical, pale ochre, dorsum with many brown marks as in
Fig. 62C
. Venter with long brown stripe centrally. Spinnerets yellowish brown. Femur of palp with a dorsal projection retrolaterally. Uncus of male palp large and curved and slightly rectangular, heavily sclerotized and provided with many scales at the edge (
Fig. 62F
). Appendix a single large rod, hook-shaped, sclerotized (
Fig. 62F
). Embolus between the uncus and appendix, soft and transparent. Procursus with ventral boss and complex tip (
Fig. 62G
).
FIGURE 62.
Pholcus zham
Zhang, Zhu & Song, 2006
(illustrations modified from
Zhang
et al
. 2006
). A. epigynum, ventral view. B. same, dorsal view. C. male body, dorsal view. D. male left chelicera, frontal view. E. male sternum, ventral view. F. left palp, prolateral view. G. same, retrolateral view. Scale lines: 1.0mm (C), 0.5mm (A, B, D–G).
Female: in general very similar to male. Total length of bodies 7.0–7.4. A specimen measured (
paratype
), total length 7.0: cephalothorax 1.7 long, 1.7 wide; abdomen 5.3 long, 1.5 wide. Tibia I: 12.8. Clypeus 0.49 high. Distance AME–AME 0.06. Diameter AME 0.10, ALE 0.22, PME 0.14, PLE 0.21. Epigynum roughly triangular as in
Fig. 62A
, with a knob-shaped apophysis on the top. Dorsal view as in
Fig. 62B
, with a rainbow-shaped sclerotized arch anteriorly and a pair of oval pore plates posteriorly.
Distribution.
Known only from the
type
locality in Nyalam County,
Tibet
.
Material examined.
CHINA
:
Tibet
,
Nyalam County
,
Zham Town
,
August 30, 2002
, leg.
F. Zhang
and
Z. S. Zhang
, male
holotype
,
6♀
paratypes
(
MHBU
)
.