Pholcus sudhami Huber, 2011

Berhard A. Huber, Booppa Petchard, Charles Leh Moi Ung, Joseph K. H. Koh & Amir R. M. Ghazali, 2016, The Southeast Asian Pholcus halabala species group (Araneae, Pholcidae): new data from field observations and ultrastructure, European Journal of Taxonomy 190, pp. 1-55: 24-27

publication ID

10.5852/ejt.2016.190

publication LSID

lsid:zoobank.org:pub:urn:lsid:zoobank.org:pub:BE92596B-62D9-46CD-8486-CF6B36C640B11

persistent identifier

http://treatment.plazi.org/id/7F7187D5-4E5B-7030-FD99-C70FCFAEF9FC

treatment provided by

Jeremy

scientific name

Pholcus sudhami Huber, 2011
status

 

Pholcus sudhami Huber, 2011 

Figs 54–56View Figs 49 – 56, 79–89View Figs 79 – 89

Pholcus sudhami Huber, 2011: 300  , figs 1380–1382, 1411–1412, 1476–1480 (♂ ♀).

Diagnosis

Easily distinguished from most congeners by male palpal morphology (figs 1476, 1477 in Huber 2011; distinctive procursus with large membranous structure, absence of appendix) and by female genitalia (figs 1479 and 1480 in Huber 2011; elongate pore plates in lateral position and semicircular internal structures visible through cuticle; very similar to Ph. pakse  ); from Ph. pakse  only by male embolus without spines (compare figs 1476 and 1481 in Huber 2011).

New material examined

THAILAND: 9 ♂♂, 8 ♀♀, ZFMK (8 ♂♂, 7 ♀♀, Ar 15031–32)GoogleMaps  and PSUZC (1 ♂, 1 ♀), Kanchanaburi, Erawan  National Park (14°22.2' N, 99°08.75' E), 85 m a.s.l., forest along stream, on rocks and tree roots, 15 Mar. 2015 (B.A. Huber, B. Petcharad)GoogleMaps  ; 2 ♀♀, in absolute ethanol, ZFMK ( Mal 379), same dataGoogleMaps  ; 1 ♂, 2 ♀♀, RMNH, Erawan National Park , 15–16 Mar. 1986 (C.L. & P.R. Deeleman)  .

Assigned tentatively

THAILAND: 3 ♂♂, 3 ♀♀, ZFMK ( Ar 15033), Prachuap Khiri Khan, Khao Sam Roi Yot National Park, near Tham Phraya Nakhon (12°12.0' N, 100°00.8' E), 40 m a.s.l., at rocks in forest, 14 Mar. 2015 (B.A. Huber, B. Petcharad)GoogleMaps  ; 2 ♀♀, 3 juvs, in absolute ethanol, ZFMK ( Mal 373), same dataGoogleMaps  ; 1 ♀, ZFMK ( Ar 15034), Khao Sam Roi Yot National Park, Tham Kaeo (12°12.2' N, 99°59.5' E), 60 m a.s.l., under rock in cave entrance, 14 Mar. 2015 (B.A. Huber, B. Petcharad)GoogleMaps  ; 1 ♀, RMNH, Sam Roi Yot National Park , no further locality information, 8 Dec. 1990 (C.L. & P.R. Deeleman)  ; 1 juv., in absolute ethanol, ZFMK ( Mal 376), Wat Huai Takaeng (13°35.23' N, 99°45.52' E) (= “ Tham Phraya Prap ” in Huber 2011), 30 m a.s.l., in cave, 15 Mar. 2015 (B.A. Huber, B. Petcharad)GoogleMaps  .

Description – amendments

In males from Khao Sam Roi Yot, the uncus has a slightly more pointed tip and the subdistal spine on the embolus has a more transversal position relative to the embolus. Specimens from this locality are therefore assigned tentatively. Tibia 1 in 7 males from type locality ( Erawan  ): 8.7–10.6 (mean 9.9); in 7 females: 7.5–8.6 (mean 8.1). Hairs on male ocular area not visibly different from those in females ( Figs 79–80View Figs 79 – 89); tarsus 4 comb-hairs of the simplified Pholcus  - type (cf. Huber & Fleckenstein 2008), with three lateral tines ( Fig. 82View Figs 79 – 89); procursus with distinctive field of ventral spines ( Figs 83, 89View Figs 79 – 89); male distal cheliceral apophyses with two modified hairs each ( Fig. 86View Figs 79 – 89); gonopore with four epiandrous spigots ( Fig. 88View Figs 79 – 89); ALS with one widened, one pointed, and six smaller cylindrically shaped spigots of varying sizes ( Fig. 81View Figs 79 – 89).

Natural history

At the type locality ( Erawan  ) most specimens were found on the lower surfaces of exposed tree roots at the riverside. At the other localities, specimens were only found on overhanging smooth rocks at the cave entrances (Tham Kaeo; Wat Huai Takaeng) or in the forest (Phraya Nakhon). When disturbed, the spiders dropped to the ground.

Distribution

Known from four localities in central western Thailand ( Fig. 57View Fig. 57).

ZFMK

Germany, Bonn, Zoologische Forschungsinstitut und Museum "Alexander Koenig"

PSUZC

PSUZC

RMNH

Netherlands, Leiden, Nationaal Natuurhistorische Museum ("Naturalis") [formerly Rijksmuseum van Natuurlijke Historie]

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Pholcus

Loc

Pholcus sudhami Huber, 2011

Berhard A. Huber, Booppa Petchard, Charles Leh Moi Ung, Joseph K. H. Koh & Amir R. M. Ghazali 2016

2016
Loc

Pholcus sudhami

Huber 2011: 300

2011