Featured Articles
Visual brightness discrimination of the jumping spider Menemerus bivittatus (Araneae, Salticidae)
Circadian rhythmicity and other patterns of spontaneous motor activity in Frontinella pyramitela (Linyphiidae) and Argyrodes trigonum (Theridiidae)
Predation by spiders on ground-released screwworm flies, Cochliomyia hominivorax (Diptera: Calliphoridae) in a mountainous area of southern Mexico
The natural history of the California turret spider Atypoides riversi (Araneae, Antrodiaetidae): demographics, growth rates, survivorship, and longevity
Aspectos de la biologia reproductiva de Linothele megatheloides (Araneae: Dipluridae)
Survivability of overwintering Argiope aurantia (Araneidae) egg cases, with an annotated list of associated arthropods
The effect of the copulatory plug in the funnel-web spider, Agelena limbata (Araneae: Agelenidae)
Sting use in two species of Parabuthus scorpions (Buthidae)
A new species of Vaejovis (Scorpiones, Vaejovidae) from western Arizona, with supplemental notes on the male of Vaejovis spicatus Haradon
On the identity of Ideobisium tibiale Banks (Neobisiidae: Pseudoscorpiones: Arachnida)
The genus Chileogovea (Opiliones, Cyphophthalmi, Petallidae)
Research Notes
On the female of Cryptocellus goodnighti (Arachnida: Ricinulei)