Comparative Study of the Biology of Coccinella septempunctata (Coleoptera: Coccinellidae) Reared on Four Artificial Diets and Two Species of Aphids (Homoptera - Sternorrhynca: Aphididae). Efficiency of the convergent ladybird beetle Hippodamia convergens against the legume aphid Aphis craccivora in laboratory and semi-felid conditions. Efficiency of the convergent ladybird beetle Hippodamia convergens against the legume aphid Aphis craccivora in laboratory and semi-felid conditions. Biology and Predatory Potential of the Eleven Spotted Coccinellid Predator Coccinella undecimpunctata L. (Coleoptera: Coccinellidae) reared on two Aphid Species (Hemiptera: Aphididae) under Laboratory Conditions. Appearance of Fall Armyworm, Spodoptera frugiperda as A New Invasive Insect Pest on Maize Plants in the Nile Delta, Egypt