 Chemical signals are a single or complex mixture of substances that can illicit a behavioural response by another organism.Chemical mimicry is used as a tactic by Lycaenid butterfly larvae ("Aloeides dentatis" and "Lepidochrysops ignota") which mimic the ant species "Acantholepis caprensis".These Lycaenid mimic the brood pheromone and the alarm call of ants so they can integrate themselves into the nest.