How long do stick insects live for?

Too long. :-P

I don't know how long they live but if you put mud that is slightly moist in the bottom of the tank they lay eggs and in no time flat you will have loads of baby stick insects. I got a couple of hundred in this way

Most insects only live for a year at most.

It depends on which species of stick insect you want though. Some hatch, breed and then die. Others live to the end of the summer, lay eggs and then die

Stick insects themselves live quite a while, beware though, that a) they lay eggs daily once mature, which hatch very quickly and b) if stick insects escape, they can usually be found on the curtain in the living room... Don't ask me why...

I've never know anything else to be an arthropod that can fly that isn't an insect... only insects that are arthropods can fly. Vinegar flies aka fruit flies love over ripe fruit. Gnats too. seems to be a Dipetra outbreak. Watch them it interesting what happens. But most likely its a fruit fly

about a year

they stick around for a couple of years if you're lucky. Get a real stick they last much longer.

Never mind the silly answers, just "stick" with it, People have not "twigged" the question.

Never seen a dead one, seen a few twigs on the ground

Depends which branch of the family.

mine only lived for a few days