Palaeodictyopteroids (insects with piercing and sucking mouthparts) began to decline during the mid-Permian; these extinctions have been linked to a change in flora.
Os Palaeodictyopteroidea (insectos con bocas perforadoras e chuchadoras) empezron a declinar durante a metade do Permiano; estas extincións foron ligadas a un cambio na flora.