Talk:Spilagmite/@comment-94.14.198.33-20130629064829/@comment-98.24.104.96-20130822091701

Unlike spider dens, spilagmites don't actually "link" to cave spiders/spitters. Once spawned they no longer have anything to do with the nest. The result is that the nest can keep spawning with no upper limit and the existing spiders will never despawn (return to nest), which leads to truely massive swarms of spiders and spitters if left unchecked.

Generally spiders and spitters only spawn when the nest is disturbed (by anything) however, so unless there are other creatures passing through the webbing or attacking spiders they wont be generating swarms constantly.