Alien Larva

The Alien Larva is a Hardmode, post-Lunatic Cultist enemy which appears around the Vortex Pillar during the Lunar Events. They move fairly slow along the ground. A number of these spawn on the death of an Alien Queen. If unattended, they will grow into Alien Hornets, which in turn become Alien Queens later on.

History
Larve extraterrestre 异星幼虫