Prismatic Lacewing

The Prismatic Lacewing is a rare Critter that spawns in the Surface Hallow during night time after Plantera has been defeated. Killing it in the Hallow during the night summons the Empress of Light boss. Killing the Prismatic Lacewing during the Day will not spawn the Empress of Light. As well as this, the Lacewing can be caught with a Bug Net, and be used to craft a Prismatic Lacewing Jar.