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Revision of the SE Asian spider genus Aetana

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AutorInnen: 
Huber BA, Nuñeza OM, Leh Moi Ung C.
Erscheinungsjahr: 
2015
Vollständiger Titel: 
Revision, phylogeny, and microhabitat shifts in the Southeast Asian spider genus Aetana (Araneae, Pholcidae).
ZFMK-Autorinnen / ZFMK-Autoren: 
Dr. Bernhard A. Huber
Org. Einordnung: 
Arachnida
Publiziert in: 
European Journal of Taxonomy
Publikationstyp: 
Zeitschriftenaufsatz
DOI Name: 
http://dx.doi.org/10.5852/ejt.2015.162
Keywords: 
Pholcidae, Aetana, Southeast Asia, cladistic analysis, microhabitat shift
Bibliographische Angaben: 
Huber BA, Nuñeza OM, Leh Moi Ung C. 2015. Revision, phylogeny, and microhabitat shifts in the Southeast Asian spider genus Aetana (Araneae, Pholcidae). European Journal of Taxonomy 162: 1-78. http://dx.doi.org/10.5852/ejt.2015.162
Abstract: 

The previously poorly known Southeast Asian spider genus Aetana Huber, 2005 is revised. Fifteen species are newly described, first SEM data and a first phylogenetic analysis of the genus is presented. Four species groups are well supported, one restricted to Borneo, two restricted to the Philippines, and one ranging from the Philippines to Fiji. The cladistic analysis and field observations suggest that the ancestor of Aetana built its web close to the ground, in confined spaces among and under rocks and logs. In at least two cases, evolutionary shifts of microhabitat resulted in species being adapted to life in higher forest strata, with correlated morphological and behavioral changes (lighter coloration; longer abdomen; additional sheet in web or more strongly domed web). The following species are newly described: A. abadae, A. baganihan, A. banahaw, A. kiukoki, A. libjo, A. loboc, A. lozadae, A. manansalai, A. ocampoi, A. paragua, and A. pasambai from the Philippines; A. gaya, A. indah, A. lambir, and A. poring from northern Borneo. The female of A. kinabalu Huber, 2005 is newly described. A potential case of female genital dimorphism is documented in A. ocampoi.