author(s)
N Zouaki, H Ouattar, M Slim and M Fadli

abstract
The purpose of this study is to place the insects of the two different areas (Maâmora Forest and Merja of Fouarat) in the Gharb plain region (33° to 34° N and 6° to 8° E); they are located in the sub-humid bioclimatic floor to mild winter. The realization of this place was made from two sampling methods: net fauchoir and sight hunting. The sampling permits to identify 55 species divided into seven orders and 25 families. In the Maâmora forest, we found that 40 identified species, 13 are the main enemy insects of the cork oak, which is considered as the main essence of the Maâmora forest especially the Lymantria dispar. In addition, it is the order of Coleoptera which is the most dominant with 17 species, the diversity index H' is equal to 3.28 bits and the equitability E has 0.89 bits.In the Merja of Fouarat, 46 species are captured and corresponded to the diversity H' of 3.35 bits as well as to the equitability E of 0.87. The Merja of Fouarat, a wetland of the Gharb region, contributes to regional biodiversity and should imperatively be elevated to nature reserve status.