Our research is a contribution to the aims of insects for Deeping our quantitative and\r\nqualitative knowledge in Oued Souf area. Oued Souf situated in the northeast of Algerian\r\nSahara, with a mild winter and a Saharan climate. For the realization of our study, we\r\nfollowed many traps. Sampling captures 180 species divided into 10 orders of Insects. In the\r\nall stations, the census allowed to have 2367 individuals divided into 77 families. The most\r\ndominant order is that of Coleoptera with 781 individuals and 57 species and 17 families,\r\nfollowed by the order of Hymenoptera with 754 individuals distributed over 36 species and 15\r\nfamilies, the order of Diptera with 621 individuals distributed on 32 species and 16 families.\r\nThe rest of the insects distributed in seven orders in small proportions compared to the first\r\nthree. The specific composition of the insects showed the dominance of Musca domestica\r\n(Muscidae), Pheidole pallidula, Camponotus thoracicus, Cataglyphis bombycinus\r\n(Formicidae). Pimelia confusa (Tenebrionidae). The calculation of the specific diversity gives\r\na value of \"5.34\" bit following an equitability of 73.25%, reflecting a significant structuring of\r\nthe environment. Calculate of similarity index prove that there is an important dissimilarity of\r\necological conditions between the stations.

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