Spiders (Araneae) from the Alpine Zone of the South and West Flanks of Mt. Wrangell, Alaska (62"N, 144"W)

ABSTRACT. A series of spiders was collected during a summer season from the alpine zone of Mt. Wrangell, Alaska (62'N, 144"W). Most of the species collected have also been taken from lowland sites in the boreal forest and the Arctic and have extensive ranges in the orthern nearctic. Some of these species also occur in the palearctic. The dominant families were the Linyphiidae (Erigoninae and Linyphiinae) and the Lycosidae, the only families represented by more than two species within a family. The other families represented were the Agelenidae, Araneidae, Dictynidae, Salticidae and Thomisidae. A phalangid and trombidiiform mite were also coHected. Key words: spiders, Mt. Wrangell, alpine zone, Alaska, nearctic and holarctic distribution RÉSUMÉ. Une quantité d'araignées furent recueillies pendant l'kté dans la zone alpine du mont Wrangell, en Alaska (62"N, 144"O). La plupart des espi?ces trouvées ont aussi été prises dans des sites montagnards de la forêt bodale et dans l'Arctique et ont une vaste distribution dans le nord des régions néarctiques. Certaines des espi?ces sont aussi trouvées dans le paléarctique. Les familles dominantes furent les Linyphiidés (les Ergonidés et le