How do you call insects empty shells properly?
Some insects take off its shells (skin) to be mature. How do you call insects' empty shells properly.

When an insect take off its shell, how would it. would you say take off?

How do you call a baby insect? A larva ?

Question

How do you call insects empty shells properly?
Some insects take off its shells (skin) to be mature.  How do you call insects' empty shells properly.

When an insect take off its shell, how would it.  would you say take off?

How do you call a baby insect?  A larva ?

Answer

It sheds its skin.

Answer

The technical name for the outer skin - on or off the insect - is called the exoskeleton.  Some people, if they see an empty exoskeleton, will call it a shell.
When the insect takes it off, it "molts".
Yes, a newly hatched baby insect is called a larva.  A caterpillar is the larval form of a moth or butterfly.  
If it undergoes complete metamorphosis, like a butterfly, it will transform into an intermediate form called a pupa.

Answer

I don't believe "shedded" is correct. Common English would say, "the insect shed it's skin". Sometimes it can be called the insect's skeleton as well. A baby insect is a Larva.

Answer

Since Im not a scientist Im not sure but i think you can say shedded skin. for taking off its skin you can say shed I think. "The insect shedded its skin."  I'm sure their are better words for this but this is very specific vocabulary. You would say larva for a baby insect.

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