Larva:a slow -moving, worm- like Alien offspring. They spit a deadly acid that can melt plastic into an edible substance that the larva then feed upon. Once fed, larva evolves into the next stage of development: the Spider. Larva are the weakest of all alien lifeforms so getting rid of them while they’re young may be your best bet (by the Maker!, that’s sounds very, very bad).