Résumé:
In the context of studying the biodiversity of orthopterfauna (Grasshoppers and Katydids) of
the region of Setif, an inventory was conducted in three different ecosystems to determine the
different species in the region. The diversity and abundance of this group of insects were
evaluated between 2007 and 2009 in a fallow land, a reforestation of Aleppo pine and a
wetland. Altogether 44 species were identified with 35 species of Caelifera and 9 species
Ensifera (Katydids) distributed between 26 genus and 5 families. The Acrididae is widely
predominated including 6 subfamilies. 13 new species are added to the region of Setif.
Integrated taxonomic methods, morphological, chemical and genetic were applied to 8 acridid
species including Calliptamus barbarus , C.wattenwylianus, Oedipoda miniata, Acrotylus
patruelis, A. insibricus, Sphingonotus maroccanus, Pseudosphingonotus finotianus,
Sphingoderus carinatus . The results revealed for every species his various components of
cuticular hydrocarbons and his DNA sequence. New taxonomic criteria are retained for
certain species and supplemented for others.
