Pholcus tambunan

Bernard A. Huber, Joseph K. H. Koh, Amir-Ridhwan M. Ghazali, Kamil A. Braima, Olga M. Nuñeza, Charles Leh Moi Ung & Booppa Petch, 2016, New leaf- and litter-dwelling species of the genus Pholcus from Southeast Asia (Araneae, Pholcidae), European Journal of Taxonomy 200, pp. 1-45: 25

publication ID

http://doi.org/ 10.5852/ejt.2016.200

publication LSID

lsid:zoobank.org:pub:urn:lsid:zoobank.org:pub:404329BA-FD12-4F24-ABB6-0AC78A11DE54

persistent identifier

http://treatment.plazi.org/id/BB3B4178-FFBB-FF96-FDB1-EA76BBBC94A8

treatment provided by

Jeremy

scientific name

Pholcus tambunan
status

 

Pholcus tambunan  species group

Diagnosis

The two species included in this group are medium-sized, long-legged spiders (body length ~4, male leg 1 length: ~35–40), distinguished from other species groups in Pholcus  by combination of the following characters: elongate abdomen angular dorso-posteriorly ( Figs 94, 98View Figs 93 – 100); six eyes; male chelicerae with distinctive distal apophyses (flat sclerites without modified hairs; Figs 103View Figs 101 – 105, 108View Figs 106 – 113, 120View Figs 120 – 124); most palpal structures unusually long (in particular genital bulb; Figs 101View Figs 101 – 105, 121View Figs 120 – 124); male bulb without uncus; epigynum weakly sclerotized, scape directed towards anterior with terminal ‘knob’ ( Figs 104View Figs 101 – 105, 123View Figs 120 – 124); female internal genitalia with pair of highly distinctive three-layered telescopic tubes ( Figs 105View Figs 101 – 105, 124View Figs 120 – 124).

Description

See individual descriptions of the two very similar species below.

Composition

Only the two species described below.

Natural history

Both species were found on the undersides of live leaves where they built very fine webs tightly attached to the leaf surface. Both species were frequently seen to share their webs with cecidomyiid flies. For further information, see descriptions below.

Distribution

The P. tambunan  group is restricted to northern Borneo ( Fig. 1View Fig. 1).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Pholcus