Japanese entomologists Shinji Sugiura (Kobe University) and Masakazu Hayashi (Hoshizaki Green Foundation) found that the bombardier beetle P. occipitalis jessoensis has a stronger defense against a shared predator compared to the assassin bug S. flavipes. They also showed that both the bombardier beetle and the assassin bug benefit from the mimetic interaction via the shared predator. Their research appears in the 6 June 2023 issue of PeerJ.