What kind of worm is this?

[TBGator]

It spins a "web" every night.

Is there anything that will eat it?

 

[dingusplease]

... You have discovered a Martian life form

Lol just kidding, I can't think of anything that matches. Are you sure it actually "spins a web" every night? I'll be interested to know what it is if anyone else chimes in!

 

[kdpuffer]

Could be a type of snail perhaps. I know some species spin a similar structure with their eggs