They lay their eggs in it, thinking it's a nice bit of carrion, and not realizing that there's no food for the eggs, that the eggs are going to die, but the plant, meanwhile, has benefited, because the bristles release and the flies disappear to pollinate the next flower -- fantastic.
Põem lá os ovos, pensando que é um bom bocado de carne podre, sem perceber que não há comida para os ovos — os ovos vão morrer — mas a planta, entretanto, beneficiou, porque as cerdas libertam pólen e as moscas desaparecem para polinizar outra flor — fantástico!