Bump. This is too good of a conversation to get swept away.
Arachnophobia the movie depicted a hive of arachnids, so that might be considered an instance of arachno-communism.
Why?
Presumably the workers were enjoying the full product of their labor or something. And when they caught humans in their web and ate them, well thats just like killing a capitalist because you want a part of the wealth he has accumulated over his lifetime.
So killing for greed.
lol, Malachi 
arachno communism could work, id actually agree that it already exists.
Extremely relevant to the conversation:
… Carry on.