“…The inter‐caste communication can occur in three contexts (Grüter and Keller, ): (i) communication between queens and males during mating behaviour; (ii) communication between queens and workers that contribute to the regulation of reproduction; and (iii) communication between worker castes that regulate the number of workers performing the non‐reproductive tasks, such as, foraging, house hunting and defence. Many researches have discussed the importance of inter‐caste communication for the colony success and recent advances, such as genomics and epigenetics, aim to reveal how pheromone signals are processed in the insect brain and how internal and external stimuli induce the behavioural modification associated with changes in the gene expression patterns in the brain (Withers et al ., ; Fahrbach, ; Robinson et al ., ; Zayed and Robinson, ; Yew and Chung, ; Kamhi et al ., ).…”