types:
ascidian tadpole
free-swimming larva of ascidians; they have a tail like a tadpole that contains the notochord
cercaria
tadpole-shaped parasitic larva of a trematode worm; tail disappears in adult stage
wireworm
wormlike larva of various elaterid beetles; feeds on roots of many crop plants
mealworm
the larva of beetles of the family Tenebrionidae
jointworm,
strawworm
larva of chalcid flies injurious to the straw of wheat and other grains
caseworm
insect larva that constructs a protective case around its body
caterpillar
a wormlike and often brightly colored and hairy or spiny larva of a butterfly or moth
nymph
a larva of an insect with incomplete metamorphosis (as the dragonfly or mayfly)
leptocephalus
slender transparent larva of eels and certain fishes
bot
botfly larva; typically develops inside the body of a horse or sheep or human
grub
a soft thick wormlike larva of certain beetles and other insects
caddisworm,
strawworm
larva of the caddis fly; constructs a case of silk covered with sand or plant debris
cankerworm
green caterpillar of a geometrid moth; pest of various fruit and shade trees
inchworm,
looper,
measuring worm
small hairless caterpillar having legs on only its front and rear segments; mostly larvae of moths of the family Geometridae
cutworm
North American moth whose larvae feed on young plant stems cutting them off at the ground
silkworm
the commercially bred hairless white caterpillar of the domestic silkworm moth which spins a cocoon that can be processed to yield silk fiber; the principal source of commercial silk
tent caterpillar
the larvae of moths that build and live in communal silken webs in orchard and shade trees
webworm
several gregarious moth larvae that spin webs over foliage on which they feed
bollworm
any of various moth caterpillars that destroy cotton bolls
maggot
the larva of the housefly and blowfly commonly found in decaying organic matter