🪰 Mutant Fly

The Mutant Fly is an aggressive monster in Stardew Valley found in the Mutant Bug Lair. It is the transformed form of the Mutant Grub, appearing if a grub is left alive long enough to cocoon. Mutant Flies are fast, deal more damage than Cave Flies, and often spawn in swarms, making them a serious threat.

They share many traits with regular Cave Flies but are stronger, more durable, and more dangerous to unprepared players.

📊 Stats

HP: 120
Damage: 18
Defense: 0
Speed: 4
XP: 10

🌍 Location

Found exclusively in the Mutant Bug Lair.
Spawn when Mutant Grubs cocoon if not killed in time.
Often appear in large numbers, making combat dangerous.

🎁 Drops

Bug Meat (common)
Dwarf Scrolls (rare)

💡 Tips & Strategies

Eliminate Mutant Grubs before they cocoon to prevent Mutant Flies from spawning.
Bring knockback or AoE weapons to manage large swarms.
Healing food is essential — Mutant Flies can overwhelm and deal heavy damage quickly.
Counts toward the Monster Eradication Goal for Bugs, Flies, and Mutant Variants.