Pholcus buatong

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 : 38

publication ID

https://doi.org/ 10.5852/ejt.2016.190

publication LSID

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

DOI

https://doi.org/10.5281/zenodo.6076805

persistent identifier

https://treatment.plazi.org/id/7F7187D5-4E69-700F-FD9C-C3E4CF8EF9C2

treatment provided by

Jeremy

scientific name

Pholcus buatong
status

 

Pholcus buatong View in CoL species group

This species group is newly proposed to include one species previously part of the Ph. halabala group ( Ph. satun Huber, 2011 ), one species previously tentatively assigned to the Pholcus ethagala group ( Ph. schwendingeri Huber, 2011 ), and a newly described species ( Ph. buatong Huber , sp. nov.). They share three putative synapomorphies, (1) the complete reduction of distal anterior apophyses on the male chelicerae ( Fig. 156 View Figs 154 – 158 ); (2) the very distinctive dorsal bulging of the male palpal patella ( Fig. 155 View Figs 154 – 158 ; angle between femur and patella ~120–125° rather than ~180° as in typical pholcids); and (3) the large, heavily sclerotized ‘knob’ on the epigynum ( Figs 184, 187, 190 View Figs 184 – 192 ). The group is strongly supported by preliminary molecular data (A. Valdez-Mondragón, B.A. Huber & D. Dimitrov unpublished data). Pholcus schwendingeri and Ph. buatong sp. nov. also share a distinctive whitish membranous process retrolatero-distally on the procursus (arrows in Figs 155 View Figs 154 – 158 , 180 View Figs 173 – 183 ). Otherwise this group appears rather inhomogeneous: Pholcus schwendingeri males have extremely long eye stalks ( Fig. 173 View Figs 173 – 183 ) while males of the other two species have short eye stalks ( Fig. 155 View Figs 154 – 158 ); Pholcus buatong sp. nov. is rock-dwelling while the other two species are leaf litter dwelling; Pholcus satun has small AME, while the other two species lack AME; Pholcus satun males have only one bulbal process (sclerotized embolus), while males of the other two species have a membranous embolus plus an appendix. In all three species, egg-sacs are carried in front of the body ( Figs 145, 152 View Figs 143 – 152 ) as in typical pholcids. This species group is known from southern Thailand and northern mainland Malaysia ( Fig. 153 View Fig. 153 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Pholcus

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