I managed to find another jumping spider in the house, so I decided to drop it into the cellar spider can to see what would happen.

The cellar spider had already had quite a nice life, having been well fed previously. I actually fed it with some random flying ants. Of course, it also turned to cannibalism: I dropped another cellar spider together with the original cellar spider and it was instantly eaten.

What happened after the jumping spider dropped into the can was completely unexpected: Though it was caught in the cellar spider's web (which has already been there for a long time), it managed to escape. Then it found the cellar spider, instantly latched on to it, killed it and ate it.

That was quick.

RIP cellar spider.

The jumping spider went into hiding at the top of the can while it digested its food, leaving me with enough space to clean the cellar spider's web off the can.