How to Unlock the Secret Tomb in Catch Bugs (April 2026)

If you have been exploring the sandy dunes of Duneburrow in Catch Bugs on Roblox, you have probably stumbled across a sealed stone wall covered in strange rune symbols. That is the Secret Tomb, and it stays locked until you bring three specific bugs to its entrance. In this guide, I will walk you through exactly how to unlock the Secret Tomb in Catch Bugs, including all three bug locations and the step-by-step process to get inside. If you are looking for more Roblox game guides, we have plenty of those on the site too.

Where is the Secret Tomb Located in Catch Bugs?

The Secret Tomb is hidden inside the Duneburrow zone, one of the later areas in Catch Bugs. To reach it, you need to navigate from the Cell Area through a series of tunnels carved into the desert rock.

Start at the Cell Area in Duneburrow and head toward the Net Area. Along the path between these two zones, look for a narrow tunnel branching off to the side. This side tunnel is easy to miss if you are sprinting, so slow down and check each wall as you move through.

At the end of this tunnel, you will find a large stone wall marked with three glowing rune symbols. This is the sealed entrance to the Secret Tomb. The runes stay inactive until you approach with the right bugs in your inventory, which I will cover next.

How the Rune Puzzle Works

The rune puzzle is straightforward once you understand the mechanic. The tomb wall has three rune slots, and each one corresponds to a specific bug. When you walk up to the wall with a required bug in your collection, its matching rune lights up.

You do not need to hold the bugs in your hand or place them anywhere. Simply having all three bugs caught and stored in your inventory is enough. The order you bring them does not matter either, so you can catch them in whatever sequence is most convenient.

Once all three runes activate, the stone wall slides open and reveals the Secret Tomb interior. It is that simple, but the challenge is finding and catching the three bugs themselves.

Important warning: Do not sell any of the three required bugs before you reach the tomb. If you sell one, you will have to go back and catch it again. Many players on Reddit have reported this exact mistake, so keep Crescent Wing Butterfly, Spiny Harvestman, and Wasp Moth safely in your collection until you unlock the door.

All 3 Bug Locations to Unlock the Secret Tomb in Catch Bugs

You need three specific bugs scattered across different areas of Duneburrow. Here is where to find each one, along with tips that make catching them easier.

Crescent Wing Butterfly Location (Moon Hollow)

The Crescent Wing Butterfly spawns in the Moon Hollow area, which is a distinct sub-zone within Duneburrow. Moon Hollow has a darker, more mystical atmosphere compared to the rest of the desert, making it recognizable once you arrive.

This butterfly tends to spawn near the glowing flora scattered around Moon Hollow. Check around the luminous mushrooms and plants, as the Crescent Wing Butterfly is drawn to those spots. It moves at a moderate speed, so it is not the hardest bug to catch, but it can dart away quickly if you rush in.

The best approach is to walk slowly toward the butterfly rather than sprinting. Use a wide net swing when you are close enough, and try to corner it against a wall or rock formation where it has fewer escape routes.

Spiny Harvestman Location (Cave)

The Spiny Harvestman is found inside the Cave area of Duneburrow, and reaching it is where most players get stuck. The cave entrance is located in the rocky section between the main Duneburrow zone and the Cell Area. Look for a small opening in the cliff face that is partially obscured by sand drifts.

Once inside the cave, the Spiny Harvestman spawns on the walls and ceiling near the deeper sections. It is a fast-moving bug that drops from surfaces when startled, which makes it tricky to pin down. I recommend checking our cave exploration guides if you want general tips on navigating dark areas in games like this.

To catch the Spiny Harvestman effectively, wait until it stops moving on a wall surface. Approach from below at an angle where it cannot drop on you and escape. Time your net swing for the moment it pauses, which usually happens every few seconds as it moves between spots.

Community discussions on Reddit confirm this is the bug that trips people up the most, mainly because the cave entrance is so easy to overlook. Take your time scanning the cliff faces in the rocky transition zone.

Wasp Moth Location (Duneburrow)

The Wasp Moth is the third and final bug you need. It spawns in the main Duneburrow area, so you do not have to venture into any sub-zones to find it. Look for it fluttering around the open desert spaces, especially near rock formations and cacti.

This moth is quick and erratic in flight, making it one of the harder bugs to catch through direct pursuit. Instead of chasing it, position yourself near one of its common spawn points and wait. The Wasp Moth tends to circle back to the same area, so patience pays off here.

When the moth flies within range, swing immediately. You usually get one clean attempt before it zips away. If you miss, back off and wait at the same spot for it to return rather than chasing it across the map.

If you enjoy hunting for rare creatures in Roblox games, check out our bug catching guides for similar challenges.

Step-by-Step: How to Unlock the Secret Tomb in Catch Bugs

Here is the complete process from start to finish, broken into clear steps so you can follow along easily.

Step 1: Travel to Duneburrow and locate the Cell Area.

Step 2: Enter Moon Hollow and catch the Crescent Wing Butterfly near the glowing plants.

Step 3: Find the cave entrance in the rocky zone between Duneburrow main area and the Cell Area.

Step 4: Enter the cave and catch the Spiny Harvestman from the walls in the deeper sections.

Step 5: Return to the main Duneburrow area and catch the Wasp Moth near rock formations and cacti.

Step 6: With all three bugs in your inventory, navigate through the tunnel from the Cell Area toward the Net Area and find the side passage leading to the stone wall.

Step 7: Walk up to the tomb wall. All three rune symbols will activate automatically and the wall will open, granting you access to the Secret Tomb.

What is Inside the Secret Tomb?

Once the stone wall opens, you gain access to an entirely new area with high-tier bug spawns that do not appear anywhere else in Duneburrow. The tomb interior contains rare and valuable bugs that are worth significantly more than standard desert catches.

Players report finding unique spawns inside that can sell for high amounts or be used for later-game content. The tomb also has hidden alcoves and side chambers worth exploring for additional discoveries.

If you have made it this far, the rewards are well worth the effort of tracking down those three bugs. For more Roblox game guides covering other popular titles, browse our full collection on the site.

FAQ

Unlocking the Secret Tomb in Catch Bugs comes down to finding three specific bugs scattered across Duneburrow, Moon Hollow, and the Cave. Catch the Crescent Wing Butterfly near the glowing plants, track down the Spiny Harvestman inside the cave, and snag the Wasp Moth in the open desert. Bring all three to the rune wall and it opens automatically. The high-tier spawns waiting inside make every minute of bug hunting worthwhile. Good luck out there, and enjoy exploring what the tomb has to offer.