Tainted Crawler

The Tainted Crawler is a hostile mob added by Thaumcraft 6. It resembles and behaves like Silverfish, though it has a smaller hitbox. It has a moderately high chance to spawn when Swollen Taint is broken. It may also rarely spawn from collapsing Flux Rifts. It lays down Fibrous Taint on most blocks it crawls over, in nearly the same way Snow Golem (Vanilla) do. They can therefor only replace air blocks in their hitbox, and will not be able to place down Fibrious Taint if they are inside other blocks such as Tall Grass (Vanilla). Tainted Crawlers have a chance to drop Vitium Vis Crystals when slain.