
Featured Articles
The phylogenetic utility of the nuclear protein-coding gene EF-1α for resolving recent divergences in Opiliones, emphasizing intron evolution
The web of the acacia orb-spider Eustala illicita (Araneae: Araneidae) with notes on its natural history
Visual cues used by ant-like jumping spiders to distinguish conspecifics from their model
A new species of Mesobuthus (Scorpiones: Buthidae) from Xinjiang, China, with notes on Mesobuthus songi
The enigmatic Pennsylvanian arachnids Areomartus ovatus and Vratislavia silesica (Trigonotarbida)
Caves as islands: mitochondrial phylogeography of the cave-obligate spider species Nesticus barri (Araneae: Nesticidae)
The genus Taira, with notes on tibial apophyses and descriptions of three new species (Araneae: Amaurobiidae)
A new species and new records of Hentzia (Araneae: Salticidae: Dendryphantinae) from the United States
A review of the coelotine genus Eurocoelotes (Araneae: Amaurobiidae)
Silk gene transcripts in the developing tubuliform glands of the Western black widow, Latrodectus hesperus
Agnostopelma: a new genus of tarantula without a scopula on leg IV (Araneae: Theraphosidae: Theraphosinae)
A new orophilous species of the genus Dasylobus (Opiliones: Phalangiidae) from Sierra Nevada, Spain
Short Communications
Functional diversity of ladder-webs: moth specialization or optimal area use?
Optimal sting use in the feeding behavior of the scorpion Hadrurus spadix
The chemical defense of the Texas cave harvestman Chinquipellobunus madlae: first report on the family Stygnopsidae and on a North American troglobiont harvestman (Opilones: Gonyleptoidea)
Stealing for love? Apparent nuptial gift behavior in a kleptoparasitic spider
The host becomes dinner: possible use of Cyclosa as a nuptial gift by Argyrodes in a colonial web
Insect attraction by webs of Nephila clavipes (Araneae: Nephilidae)
Reestablishment of the species Poeciloneta bellona (Araneae: Linyphiidae)
A new species of blind subterranean Tetrablemma (Araneae: Tetrablemmidae) from Australia
Nephila clavipes females have accelerating dietary requirements
An unusual setule on type IV urticating setae of Homoeomma uruguayense (Araneae: Theraphosidae)