|Spawns In:||The Mines|
|Variations:||Mutant Fly Cave Fly (dangerous)|
|Drops:|| Ancient Seed (0.5%) Bug Meat (90%) Dwarf Scroll I (0.5%) Dwarf Scroll IV (0.1%) White Algae (2%)|
If reached bottom of Mines:Diamond (0.05%) Prismatic Shard (0.05%)
Grubs hatch into Cave Flies shortly after entering their cocoon phase, during which time they are invulnerable. Be sure to kill off a critically-hit Grub before it can enter its cocoon.
They fly at you (including through walls) at high speeds, damaging you on contact. Then they loop around for another pass.
Stand still and swing at them with a sword with high knockback right before it hits you.
- 1.0: Introduced.