faunistic study of caelifera (insecta: orthoptera) in dasht-e azadegan county, khuzestan province, iran

This study is aimed to explore the fauna of grasshoppers and locusts (orthoptera) within the county of dasht-e azadegan (khuzestan province), where is placed a vast plain with geographical coordinates of 47°42′ to 48°28′ e and 31°24′ to 32°57′ n. sampling carried out since march 2015 until end of august 2016 using insect sweeping net and also light torch at eleven selected sites and continued for the duration of all seasons of each year every one month. the collecting sites were selected to cover the whole area in terms of climate, sea level, and vegetation. referring to morphological identification keys and comparing the result with the type of material deposited at hayk mirzayans insect museum, out of 1770 specimens, four families, 11 subfamilies, 21 genera and 25 species enlisted. out of which, one genus, and two species were discovered to be new to the fauna of iran. based on the yielded statistics, aiolopus thalassinus is candidates as the most frequent species in the area.