Chemical communication using pheromones is crucial for the reproductive success of many insect species, including beetles (Coleoptera). Pheromones are detected by specialised odorant receptors (ORs), called pheromone receptors (PRs), in the sensory neurons of the antennae. The PRs in Coleoptera remain understudied, with only a few receptors being functionally characterised. This limits our understanding of their response speci...