There's been an exciting new discovery in the fight against plastic pollution: mealworm larvae that are capable of consuming polystyrene. They join the ranks of a small group of insects that have been found to be capable of breaking the polluting plastic down, though this is the first time that an insect species native to Africa has been found to do this.
I can’t find it in the article, but I assume this is the same as all the other plastic eating organisms; They can eat plastic under specific circumstances, but would rather not. What is in the article; they can only survive on polystyrene if it is mixed with other food and nutrients.