الخلاصة:
The Algerian Orthopterological biodiversity is remarkable and varied quantitatively and
qualitatively from one bioclimatic stage to another. We are particularly interested in
grasshopper and locust fauna for 11 regions belonging a two bioclimatic stage: arid and semi
arid. Lists are drawn up on the basis of data available in the literature and from a study of
specimens collected by the authors. One hundred and fifty species of Orthoptera belonging to
26 genera, and 14 families were recorded in different habitats. Tlemcen is the richest with 67
species, followed by Setif and Constantine with 65 and 55 species, respectively. The family
Acrididae was found to be the most dominant and was represented with 70 species, second
dominant family was Pamphagidae with 32 species. Tettigoniidae stood at third rank with 23
species. Among these families, we found that Acrididae is the best represented one with nine
subfamilies. Subfamily Oedipodinae is the largest, consisting of 35 species. Three Acrididae
species (Anacridium aegyptium, Acrotylus patruelis and Aiolopus strepens) were collected in
all the eleven sites.
