Stardew Valley Mutant Fly  Mutant Fly


Mutant Flies are monsters found in the Mutant Bug Lair. Mutant Flies appear after a Mutant Grub hatches from its cocoon phase. There is a Monster Eradication Goal of killing 125 Cave Insects for the Adventurer’s Guild, any Mutant Fly kills will count towards this.



Location HP Damage Def Speed EXP
Mutant Bug Lair 66 12 1 2 10



Mutant Flies are extremely fast. Once the cocoon hatches, it will start flying towards you, even through walls. On contact they will damage you, and then repeat this process until they are killed. Your best bet is to stand still and time your sword swings as they fly towards you, a weapon with knockback is recommended.


Drop Table

Item Rarity Base Sell Price
Stardew Valley Bug Meat 48 Bug Meat (90%) 8g
 stardew valley White Algae White Algae (2%) 25g
Ancient Seed Ancient Seed (0.5%) 5g
Bottom of The Mines Reached
stardew valley Diamond Diamond (0.4%) 750g
Prismatic Shard Prismatic Shard (0.4%) 2,000g


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