The term larva refers to the immature stage of an insect or other animal, typically between hatching and pupation. The crossword solutions for larva include PUPA (4 letters), NYMPH (5 letters), CATERPILLAR (11 letters), TADPOLE (7 letters), GRUB (4 letters), bott (4 letters), WORM (4 letters), redia (5 letters), MAGGOT (6 letters), and mealworm (8 letters). These are all examples of larval forms, which can vary greatly in size, shape, and color depending on the species.