الخلاصة:
This study is made in Ghardaia, which belongs to the Saharan bioclimatic stage with mild
winter; our work is to study the biological characteristics of the most important species of
Locusts in Beni Isguen station. Thanks the method of sweep net, the inventory of the fauna
Orthoptèrologique shows the presence of 15 species. This biological study recognizes two
types of species:
Species of one generation in a year such as Sphingonotus rubescens, Aiolopus
strepens, Ochrilidia gracilis, Heteracris harterti and Truxalis nasuta.
Species with several generations in a year as Acrotylus patruelis and Pyrgomorpha
cognata
