Knowledge of semiochemically-mediated behavioural mechanisms of the seven-spot ladybird, Coccinella septempunctata L., is limited but sufficient to encourage further studies in the behavioural ecology of this well known insect. Recent findings on semiochemicals are discussed in relation to the main traits in the ecology of C. septempunctata. A putative autumn aggregation pheromone, and effects of allelobiotic plant interactions on habitat preferences of adults are reported. Mechanisms for interaction between an aphid alarm pheromone and plant substances are described, and the kairomonal functions of volatiles from C. septempunctata on the parasitoid Dinocampus coccinellae (Schrank) (Hymenoptera: Braconidae) are discussed. Considering the polyphagous diet of C septempunctata, investigations on the importance of associative learning of chemical cues in foraging behaviour, and further studies on interactions with other third trophic level organisms will provide interesting lines of research. Coccinella septempunctata (Coccinellidae) : Predator Aphidoidea (Sternorrhyncha) : Prey Documentation; Publications; Nutrition; Diet; Prey; Feeding behaviour; Behaviour; Communication; Chemical signals; Ecology; Predators Aphidoidea; Literature review; Pheromones; Alarm pheromone; Insect predators; Semiochemicals role in predator foraging; review; Coccinella septempunctata (Coleoptera) Coccinella septempunctata; Literature review; Food plants; Foraging relationships; review; Semiochemicals; Insect prey; Aphidoidea (Hemiptera); Foraging; Searching behaviour; Chemical signals none