Abstract:
Ladybugs made a useful insect fauna group that plays a very important in biological
control. Indeed, the present work focuses on the study of the role of ladybugs among insect
populations useful in the valley of M’Zab. In this context, we used three methods of sampling sites
in three surveys for four months. The results revealed the presence of six species of ladybugs are
:coccinella Algérica , Adonia variegata , Pharascymnus numidicus , Pharascymnus ovoidus , Pullus
sp Pullus sturalis . . Similarly, it was noted that the El- Atteuf station is the richest ladybugs site, it
contains 6 species, the following happens site Dayah with 5 species and finally the Beni Izgeun
with 4 species.
