We investigated the response of males and females of ladybirds to different densities of aphids. This was studied using Coccinella septempunctata as the predator and Rhopalosiphum padi as the prey. Interactions between this ladybird and prey were observed on barley (Hordeum vulgare). https://www.chiggate.com/jerome-brown-philadelphia-eagles-mitchell-ness-1990-legacy-jersey-discount/