Abstract
Searching behavior of the adult of a ladybeetle, Coccinella septempunctata L., was observed in an experimental arena. After having eaten a prey, the searching path of the beetle became more convoluted, and the beetle tended to stay in the vicinity of the site of the first prey consumption. Slower speed and increased number of turns were responsible for this change of searching path. As a rule, these changes in searching behavior were not maintained more than 70 sec when the beetle could not find any prey. Such switch-over in the searching behavior of the ladybeetle observed in this experiment would be advantageous for the beetle because its preys are mostly living in clusters.
