larva

US /ˈlɑːr.və/
UK /ˈlɑːr.və/
"larva" picture
1.

유충

the active immature form of an insect, especially one that differs greatly from the adult and forms the stage between egg and pupa, e.g., a caterpillar or grub.

:
The butterfly larva is a caterpillar.
나비 유충은 애벌레이다.
Mosquito larvae live in water.
모기 유충은 물속에 산다.