larvi-, larv- +
(Latin: insect in its grub stage; from Latin larva, "mask" and by extension, "ghost", the idea being that an insect in its grub stage is merely a ghost of its future self and bears no resemblance to its future form)
Larvae of some kinds of insects are known as caterpillars, maggots, grubs, and worms.
Used in describing a symptom, disease, or condition with atypical features.
A larva (singular form), is the stage of development between hatching and the attainment of adult form or maturity of insects.
2. Depositing living larvae, instead of eggs; a reference to certain insects.