La faune acridienne ( Orthoptera, Insecta) du Nord Algérien

Abstract

The Constantine region is located in the semi-arid bioclimatic stage. Different crops are grown in this region mainly ; Cereals (wheat, barley and oats), vegetables (tomato, potato and bean), and fruit trees (apple, pepper and peach). The locust and grasshoppers fauna in this region totals the presence of 43 species. They are divided in to five families and eleven sub families. The species Ocneridia volximii ,Praephippigera pachygaster, Dociostaurus marocanus , Aiolopus thalassinus thalassinus , Calliptamus barbaru sbarbarus and Gryllus sp are species harmful to cereals. Anacridium egyptium is reported as important pests of fruit trees. Thalpomena algeriana and Praephippigera pachygasters pecies are observed on several vegetables, they can reach the status of potential pests in the region of Constantine if the climatic conditions favor their development