The Smoke Moth is one of the trickier insects to track down in Fields of Mistria, because it only appears deep in the Mines and it is needed for the main story. This Smoke Moth guide explains exactly where to find the Smoke Moth, which mine floors spawn it, the season and weather rules, how to catch a Smoke Moth, and what to do with one once you have it. Because the Smoke Moth lives on a specific band of Lava Caves floors, knowing where to look turns a frustrating hunt into a reliable loop.
What Is the Smoke Moth?
The Smoke Moth is an uncommon bug that, true to its name, generates a small cloud of smoke around itself to hide from predators. A Smoke Moth sells for 40 Tesserae, and its rarity is uncommon — so a Smoke Moth will not spawn on every mine trip, but the Smoke Moth is far more reliable than the rare bugs. The Smoke Moth is also required for a story quest and the museum, which makes catching a Smoke Moth a must rather than a nice-to-have.
Where to Find the Smoke Moth (Lava Caves Floors 61–79)
The Smoke Moth lives only in the Lava Caves, the deeper section of the Mines. It spawns on floors 61 through 79. To reach those floors you descend past the upper mines, so the Smoke Moth is a mid-to-late game catch — you will not stumble onto a Smoke Moth in the early floors.
Best Floors for the Smoke Moth
Players report the Smoke Moth most often on floors 67, 76, and 77. If you are hunting a Smoke Moth, ride the elevator down into the 60s and sweep floors 61–79, paying extra attention to 67, 76, and 77 where the Smoke Moth is most consistent.
Smoke Moth Season, Weather, and Time
Unlike most bugs, the Smoke Moth has no season, weather, or time restriction. The Smoke Moth spawns in all four seasons, in any weather, and at any hour — day or night. The only limit is the Mines' opening hours (8:00 AM to 11:00 PM). This makes the Smoke Moth one of the few insects you can hunt year-round on your own schedule, which is a relief when a story quest needs a Smoke Moth in the dead of winter.
How to Catch the Smoke Moth
Catch the Smoke Moth with your bug net like any insect — approach quietly and swing. An Iron Net or better is recommended for the Smoke Moth. Because the Smoke Moth is uncommon, bug pheromones help: using pheromones on a Lava Caves floor raises the chance of uncommon bugs like the Smoke Moth spawning, so pop one before you sweep floors 61–79 for a Smoke Moth.
What Is the Smoke Moth Used For?
The Smoke Moth has three real uses: a museum donation, a story quest, and terrarium bait production. Each one gives the Smoke Moth more value than its 40-Tesserae sell price suggests.
Museum Donation
The Smoke Moth is donatable to the museum as part of the Lava Caves set in the Insect Wing. Donating a Smoke Moth contributes to your museum completion and your town rank, so catch an extra Smoke Moth for Errol.
The Breaking the Ruins Seal Quest
The Smoke Moth is required for the story quest “Breaking the Ruins Seal,” so you need at least one Smoke Moth to push the main story forward past a certain point. This single requirement turns the Smoke Moth from a collectible into a must-catch.
Terrarium (Fish Bait & Pheromones)
Place a Smoke Moth in a Terrarium alongside four other uncommon insects and the terrarium produces Uncommon Fish Bait or Uncommon Bug Pheromones every three days. The Smoke Moth is a solid pick for a bait-farm terrarium because the Smoke Moth is uncommon yet relatively easy to stock from the Lava Caves loop.
Smoke Moth Tips
- Descend to Lava Caves floors 61–79; check 67, 76, and 77 first for a Smoke Moth.
- The Smoke Moth spawns in any season, weather, or time — hunt it whenever the Mines are open.
- Use an Iron Net or better; pop bug pheromones to boost uncommon spawns like the Smoke Moth.
- Save one Smoke Moth for the “Breaking the Ruins Seal” story quest.
- Donate a Smoke Moth to the museum's Lava Caves set.
The Smoke Moth is one of the most useful mid-game insects in Fields of Mistria — needed for the story, the museum, and terrarium bait. Learn the 61–79 floor loop and the Smoke Moth becomes a reliable catch instead of a roadblock.