Résumé: Global warming is the most challenging problem in the near future. As such, the fauna and flora of Madagascar is particularly exposed to global change considering the high endemic rates of particularly rich groups. In the frame of several surveys aiming to describe the biological richness of the entomofauna of Madagascar, we model the ecological niche of several group of insects (namely Hemiptera Cercopidae, Heteroptera Tingidae and Coleoptera Scarabaeidae) considering the three main scenarios and three different climatic models to evaluate their reaction to global warming, using maximum entropy method. Depending of the group, the reactions are different, ranging from almost a disappearing distribution area, a shift of the distribution area and an increasing distribution area. These preliminary results are discussed regarding the ecology and the history of each group.