Larva (the newly hatched form of an insect)
Silk.
Some insect starting with the letter z are: -zoea larva -zebra butterfly -zoraptera - zerene fritillary
something
It is The larva
Larva
There are a couple of ways to kill larva. Though it depends on the insect you can usually kill larva with chlorine.
it's a freshwater insect
Larva
egg, larva, pupa, adult
A leatherjacket is the larva of a cranefly.
he immature, wingless, feeding stage of an insect that undergoes complete metamorphosis.