The present study is focused on valuation of arthropods’ population, Bemisia tabaci natural enemies, in biologic station of El Outaya in region of Biskra Algerian south. Monitoring of this arthropod fauna brings out thirteen species: belonging to ten distinct families, a spider of the Salticidae family represented by Salticus gender. As fo the nine families of insects, they are particularly represented by Miridae with majoritary species as Nesidiocoris tenuis Macrolophus caliginosus and Malacochoris sp. Anthrocoridae are represented only by Anthocoris sp. Among parasitoids Hymenoptera we find three families represented by Aphelinidae with Aphelinus and Encarsia sp. Ichneumonidae are represented by a Hymenopetran’s gender as Dibrachys sp and a Platygasteridae one represented by Amitus sp. As for others families we note Coccinellidae mainly represented by Adalia bipunctata.. We also note a Chrysopidae represented by the major species Chrysoperia carnea. As for Dermapters we point out specie of Forficula auricularia. A predator Mantidae was also found as Iris oratoria.
