Das Zoologische Forschungsmuseum Alexander Koenig

ist ein Forschungsmuseum der Leibniz Gemeinschaft

The Philippine hair wax spiders

AutorInnen: 
Huber BA, Nuñeza OM, Leh Moi Ung C
Erscheinungsjahr: 
2016
Vollständiger Titel: 
The Philippine hair wax spiders and their relatives: Revision of the Pholcus bicornutus species group (Araneae, Pholcidae).
Autor/-innen des ZFMK: 
Org. Einordnung: 
Publiziert in: 
European Journal of Taxonomy
Publikationstyp: 
Zeitschriftenaufsatz
DOI Name: 
http://dx.doi.org/10.5852/ejt.2016.225
Keywords: 
Pholcus; taxonomy; ocular area; sexual dimorphism; ultrastructure
Bibliographische Angaben: 
Huber BA, Nuñeza OM, Leh Moi Ung C. 2016. The Philippine hair wax spiders and their relatives: Revision of the Pholcus bicornutus species group (Araneae, Pholcidae). European Journal of Taxonomy 225: 1-34. http://dx.doi.org/10.5852/ejt.2016.225
Abstract: 

We revise the Southeast Asian Pholcus bicornutus group in which males are characterized by a unique pair of horns on their ocular area, each of which carries at its tip a brush of hairs. In two species, the two hair brushes are ‘glued’ or ‘waxed’ together by an unidentified substance into a very consistently curved and pointed single median tip. In the other five species known, the hairs are not treated. We present a first revision of ocular modifications in Pholcidae and identify twenty supposedly independent origins. Most cases are in Pholcinae, and all but one case are limited to the male, suggesting sexual selection as the main driving force in the evolution of ocular modifications in Pholcidae. Previously, the Pholcus bicornutus group consisted of four species limited to the Philippines. We describe four new species, including three species from the Philippines (P. olangapo sp. nov.; P. kawit sp. nov.; P. baguio sp. nov.) and the first representative from outside the Philippines (P. mulu sp. nov. from Sarawak, NE Borneo) and provide new records and SEM data for three previously described species.