The Stellar Culex is a Hardmode enemy which spawns in the Underground Astral Infection biome. It flies over the player's head and attempts to slowly swoop down on them. If it is led into touching a Unicorn and Astrum Aureus has been defeated, both enemies are instantly killed and a small crater of Astral Ore is spawned with a Starbuster Core in the middle.
Trivia
- This enemy's name refers to a genus of mosquito.