Wasp Moth
Exotic bug in Deeproot Caves. It is one of the three Secret Tomb keys and has no time gate.
The full Catch Bugs Bugdex holds 300+ species across eight zones, from common Grasslands butterflies to the Zenith and Supreme bugs added in the April 2026 Desert update. This Catch Bugs bug list covers the species players hunt most: the three Secret Tomb key bugs, the top vivarium earners, the Mythical Desert targets and the Celestial cave spawns, each with its zone, rarity and spawn condition.
These are the bug and route questions players search for most often. Use this block as the short answer, then filter the full list below when you need a specific species.
Exotic bug in Deeproot Caves. It is one of the three Secret Tomb keys and has no time gate.
Moon Hollow quest item for Madxcer's Crystal Lure path.
Mythical Desert target from the April 2026 expansion. Use Sandstorm Lure during sandstorm weather and bring Scorpion Net for strength.
Cave Mother is the highest rarity here; Colossal Sandworm and Solar Locust are high-value Mythical targets, then Secret Tomb Exotics.
Catch Bugs uses eight rarity tiers arranged from Common through Supreme. Each tier tells you three things at once: how often the bug spawns relative to others in the zone, how strong a net you need to catch it reliably, and what kind of passive income it generates in your vivarium. Understanding the tier system before you hunt saves time and prevents wasting endgame net charges on bugs that would not move your income.
| Rarity | Examples | Gameplay meaning | Net tier needed | Vivarium priority |
|---|---|---|---|---|
| Common | Grasslands butterflies, beetles, ants | Spawns constantly in starter zones. Sell duplicates for early cash — do not slot in vivarium. | Starter Net or Fast Net | Low — sell, do not slot |
| Rare | Centipede Spider | Mid-tier spawn. Worth slotting in vivarium early, replace with Exotic when available. | Fast Net or Royal Net | Early filler — replace when possible |
| Exotic | Wasp Moth · Undead Scorpion · Thousand Scorpion · Blossomwing | Reliable vivarium income. Two are Secret Tomb exclusive. Wasp Moth is a Tomb key. | Royal Net or stronger | Good — keep in vivarium until Mythical slots open |
| Elusive | Crescent Wing Butterfly · Spiny Harvestman | Has a spawn condition — time gate or zone-specific trigger. Both are Secret Tomb keys. | Royal Net minimum; higher for faster catch rate | High — also required for Secret Tomb unlock |
| Mythical | Colossal Sandworm · Solar Locust | Top vivarium income before Celestial. Both require active weather events to find efficiently. | Bone Net (luck) or Scorpion Net (strength) | Very high — fill these slots before anything else |
| Celestial | Cave Mother | Highest rarity among the listed bugs. Single best vivarium slot. | Demon Net or stronger | Top priority — one Celestial outperforms multiple Exotics |
| Zenith | April 2026 Desert update | Above Celestial. Added in the April 2026 Desert update. Requires stacking net + lure + Rune + weather event. | Dark Matter or Nuclear Net | Endgame |
| Supreme | April 2026 Desert update | Highest rarity tier. Only possible with all four bonuses active simultaneously. | Dark Matter or Nuclear Net | Endgame |
Zenith and Supreme bugs were introduced in the April 2026 Desert update.
The April 2026 Desert expansion added the Colossal Sandworm, a Mythical-rarity bug and the highest-value open-world spawn in Catch Bugs as of 2026-05. It spawns in the Desert zone during sandstorm weather events — use a Sandstorm Lure to maximise the chance. Because of its weight class, you need a Scorpion Net (250,000,000 cash, high strength + weight capacity) rather than the Bone Net to reliably capture it. Once caught, it is one of the best bugs to slot in the vivarium for endgame offline cash.
See the full Catch Bugs nets guide for the Scorpion Net cost and how it compares to the Bone Net.
The Secret Tomb unlocks when you are simultaneously carrying all three key bugs in your active inventory — not in the vivarium, not sold, but held at the same time — and then walk into the hidden tunnel in Dune Burrow. Here is the most efficient collection order, with timing notes for the hardest one.
The Wasp Moth is the easiest of the three to acquire because it spawns in Deeproot Caves with no time restriction. You can hunt it at any point in the in-game day cycle. Bring a Royal Net or stronger — the Exotic rarity catch rate improves significantly with luck above the Royal Net baseline. Catch one, hold it in your inventory (do not deposit it into the vivarium while running the other keys), and move on. If you catch extras, sell them — you only need one in hand at the time you walk into the Secret Tomb entrance.
The Spiny Harvestman spawns in Dune Burrow with no time gate — it can appear at any time of the in-game day. However, it is Elusive rarity, which means it spawns less frequently than Rare or Exotic species. Bring the highest-luck net you currently own: ideally a Scorpion Net (250M), but a strong mid-game net will work if that is where you are in progression. Keep the catch in your held inventory once you have it.
The Crescent Wing Butterfly is the hardest key bug to time because it has a hard spawn condition: it only appears after 6:30 PM in the in-game clock. Entering Moon Hollow before that time produces zero Crescent Wing Butterflies regardless of your net or lure. Enter Moon Hollow, watch the in-game clock, and wait through the day cycle until it passes 6:30 PM. Once the night cycle begins, start sweeping the area. Use the highest-luck net available — this is Elusive rarity, so spawn rate is lower than common or rare species even during the night window.
With all three bugs held simultaneously, travel to Dune Burrow and find the rocky tunnel between the Potion Traders and net shop area and the waterfall. Walk into it. If your inventory contains all three key bugs, the Secret Tomb entrance triggers and the zone opens. Inside you will find:
Sources: ProGameGuides Secret Tomb guide, and community Secret Tomb walkthroughs. Last checked 2026-05-13.
The Catch Bugs vivarium generates passive offline cash. Every slot earns based on the rarity of the bug inside it — higher rarity means more income per hour. Optimizing your vivarium slots is the most reliable way to accumulate the 200M–250M cash needed for the Bone Net and Scorpion Net without relying on codes. Here is the priority order for the bugs listed above.
Cave Mother (Celestial, Deeproot Caves) is the highest-rarity bug on this list. A single Celestial slot outperforms two or three Exotic slots combined in long offline sessions, based on community player reports. Deeproot Caves is where it spawns. This is your first-priority slot to fill once you can reach Deeproot Caves with a strong mid-game net.
Colossal Sandworm (Mythical, Desert) and Solar Locust (Mythical) are the two Mythical bugs on this list. Colossal Sandworm requires a Sandstorm event and the Scorpion Net to catch. Fill Mythical slots after your Celestial slot is secured.
Undead Scorpion and Thousand Scorpion (both Exotic, Secret Tomb) are the most reliable Exotic-tier income bugs. Unlock the Secret Tomb to access both, then use them to fill remaining vivarium slots while you save for a stronger net. Replace these with Mythical or Celestial bugs as you find them.
Tier rankings above follow rarity, the primary driver of vivarium income in community progression guides.
Once you have unlocked the Bone Net from Anpu inside the Secret Tomb, the approach to hunting Exotic, Elusive, Mythical, and Celestial species changes. The Bone Net's +1,877 luck advantage over the Scorpion Net is substantial enough to materially improve your catches-per-hour on high-rarity targets. Here is how to run it efficiently.
Use the Bone Net for anything rated Elusive, Mythical, or Celestial where the target is not classified as heavy. Use the Scorpion Net when the target requires high strength or weight capacity — specifically the Colossal Sandworm and any high-weight Desert bug. The Bone Net has lower strength than the Scorpion Net; a failed catch on a heavy bug wastes the spawn. Know your target's weight class before you commit to a net.
The peak rare-hunting window is: Bone Net + matching lure + active weather event. For Desert targets: Sandstorm Lure + Sandstorm event. For open zones (Jewel Caterpillar): Solar Lure + Solar Event. For Secret Tomb runs: Sandstorm Lure at any time. Weather events last approximately 5 minutes and cycle every 45 minutes. Watch the on-screen weather indicator and position yourself in the correct biome with your lure equipped before the event begins — not after.
If you have active Rune charges from the April 2026 system, activate them the moment a weather event starts — not during regular off-cycle grinding. The Rune multiplier combined with the weather event's mutation chance is the highest-value catch scenario in the game. Spending Rune charges outside a weather window is consistently flagged in community guides as the biggest endgame resource mistake.
After you first unlock the Secret Tomb, you can re-enter at any time by carrying the three key bugs simultaneously again. Keep one Crescent Wing Butterfly, one Wasp Moth, and one Spiny Harvestman in your held inventory during endgame grinding sessions so you can drop into the Tomb on demand for Undead Scorpion and Thousand Scorpion catches without an additional key-collection run.
Every rarity tier in Catch Bugs demands a different hunting approach. A strategy that works for farming Common and Rare bugs in the Grasslands will waste your time in Deeproot Caves hunting a Celestial Cave Mother. The tactics below are organized by rarity tier, from the most accessible to the most demanding, so you can match your approach to your current target.
Common and Rare bugs share the same effective strategy: maximize catches per minute. Luck and specialized lures matter less than swing speed and zone coverage. Use the fastest net available (Fast Net or Royal Net), ignore weather events unless one happens to be active, and sweep the entire zone rather than camping a single spawn point. Sell all Common duplicates immediately; slot the first copy of each Rare species. The goal at this tier is cash accumulation for the next net upgrade, not targeting specific species.
Exotic bugs are where net luck starts to matter. Use a Royal Net or stronger — the luck jump from Fast Net to Royal Net is significant for Exotic catch rates. Identify the specific zone your target Exotic spawns in (consult the bug table above) and camp that zone exclusively. Exotic bugs in the Secret Tomb (Undead Scorpion, Thousand Scorpion) are the most reliable Exotic targets because the Tomb has a small spawn pool — fewer competing species means your target appears more frequently relative to the total spawns. For Crawlwood and Deeproot Caves Exotics, use a matching lure during weather events to thin the spawn pool toward your target.
Elusive bugs are defined by their spawn conditions, not just their rarity. The Crescent Wing Butterfly requires the Moon Hollow night cycle (after 6:30 PM in-game). The Spiny Harvestman reportedly has no hard time gate but spawns less frequently than other Dune Burrow species. For Elusive hunting: arrive in the correct zone before the condition activates, equip the highest-luck net you own (Bone Net is optimal), and budget at least 2–3 full condition windows for a single catch. Elusive bugs are not grindable in a single session — plan for multiple day-night cycles or multiple weather windows. Keep each Elusive catch in inventory for Secret Tomb access rather than selling it.
Mythical bugs (Colossal Sandworm, Solar Locust) are the first tier where community guides consistently recommend stacking all four multiplier layers. Run the full stack: Bone Net or Scorpion Net → matching weather event → matching lure → Mutated Nectar Potion. Without all four layers active simultaneously, Mythical catch rates drop to the point where a single session may produce zero catches. Hunt Mythicals in the Desert and the open zones — caves and the Secret Tomb top out at Celestial and Exotic respectively.
Celestial (Cave Mother) is the highest-rarity bug on this list, spawning in Deeproot Caves. Zenith and Supreme are the two tiers above Celestial, introduced in the April 2026 Desert update. For Celestial hunting: add Rune charges as the fifth layer on top of the four Mythical layers. Community guides treat Rune charges as the mandatory fifth condition for Celestial-or-higher spawns — without them, the base spawn rate for Celestial is described as "functionally zero" in multiple progression videos. Save Rune charges exclusively for Celestial hunting sessions; spending them on lower-rarity targets is the most common endgame resource waste documented across community guides.
Hunting tactics drawn from community progression guides, YouTube walkthroughs, the Gamezebo mutation guide and RoUniverse April 2026 coverage.
Like most Roblox tycoons, Catch Bugs runs limited-time events that introduce bugs unavailable during normal play. Here is how the major updates fit together.
The May 23 Prehistoric update added 52 new bugs across the Bonefern and Scorchden zones, as announced in the official Discord #updates channel. Hunt them with the Bone Net or Scorpion Net, and see the locations guide for the new zones.
The April 2026 Desert update is a permanent expansion, not a limited-time event. The Colossal Sandworm (Mythical), Zenith-tier bugs, and Supreme-tier bugs added in this update remain catchable. The Desert zone and its spawn pool are now part of the permanent game world. Do not confuse the Desert update with a seasonal event — these bugs are not going away.
Sources: official Discord #updates message (2026-05-25) for the Prehistoric bug count; RoUniverse April 2026 coverage for the Desert expansion. See the update log for the full patch history and the Bonefern and Scorchden locations for the Prehistoric update zones.
Every bug in Catch Bugs has a hidden weight stat, and every net has a maximum weight capacity. When a bug's weight exceeds your net's capacity, the catch fails regardless of your luck stat or the bug's rarity. This mechanic is rarely explained in beginner guides but is the most common reason endgame players own both the Bone Net and the Scorpion Net — the Bone Net's lower strength and weight capacity means it cannot reliably capture the heaviest Desert and Blossomwing bugs.
The weight-capacity check runs after the spawn roll and before the catch animation completes. If your net's max weight capacity is lower than the spawned bug's weight, the catch fails and the bug escapes — you will see the bug appear briefly before it disappears. This is not a bug or a glitch; it is the weight gate working as designed. Players who experience frequent "disappearing bugs" in the Desert zone while using the Bone Net are hitting the weight gate. Switch to the Scorpion Net for those targets.
Tier lists and community-compiled data (The Games Edge, CheatStation, and community spreadsheet trackers) consistently flag the Colossal Sandworm (Mythical, Desert) as a high-weight bug. The pattern is consistent across multiple independent sources: endgame Desert and Blossomwing bugs have weights that exceed the Bone Net's capacity, making the Scorpion Net (or a higher-tier net like Dark Matter or Nuclear) the right pick for those targets.
The community-standard endgame loadout is to carry both the Bone Net (200M, highest luck, lower weight capacity) and the Scorpion Net (250M, higher strength, higher weight capacity). Swap to Bone Net for cave biomes, Secret Tomb runs, and any target where luck matters more than weight capacity. Swap to Scorpion Net for Desert, Dune Burrow, and Blossomwing targets where the bug's weight exceeds the Bone Net's limit. Players who attempt to use only one net for all endgame content will fail catches on roughly half the high-value target pool — the weight gate makes a single-net strategy non-viable at endgame.
Weight data: The Games Edge, CheatStation and community spreadsheet trackers. See the nets guide for the full Bone Net vs Scorpion Net comparison including luck, strength and weight capacity differences.
Each Catch Bugs zone has a small set of high-value bugs worth targeting specifically, and a larger set of filler species that you catch incidentally while hunting the priorities. The priority list below matches each zone to its highest-value targets, ordered by what you should hunt first when you enter the zone. Use this as your session checklist: clear the priority targets for your current zone before moving to the next one.
| Zone | #1 Priority Target | Why | #2 Target | Net Required | Condition |
|---|---|---|---|---|---|
| Grasslands | First Rare bug (any species) | Vivarium slot #1 — starts passive income engine | Centipede Spider | Starter Net or Fast Net | None |
| Crawlwood | First Exotic bug (any species) | Vivarium slot #2 — major income jump from Rare | Additional Exotics for slots 3–4 | Fast Net | None |
| Moon Hollow | Crescent Wing Butterfly (Elusive) | Secret Tomb key #1 + high-value vivarium bug | Jewel Caterpillar (Exotic, Madxcer quest) | Royal Net | After 6:30 PM in-game for Crescent Wing |
| Deeproot Caves | Cave Mother (Celestial) | Highest-rarity vivarium bug | Wasp Moth (Exotic, Tomb key #2) | Demon Net or stronger | None |
| Dune Burrow | Spiny Harvestman (Elusive) | Secret Tomb key #3 | Colossal Sandworm (Mythical, during Sandstorm) | Scorpion Net (for Sandworm weight) | Sandstorm event for Sandworm |
| Secret Tomb | Undead Scorpion (Exotic) | Reliable vivarium income — farmable Exotic | Thousand Scorpion (Exotic) | Bone Net (luck) or Scorpion Net | Carry all 3 key bugs to enter |
| Jewel Jungle | Jewel Caterpillar (Exotic) | Madxcer Crystal Lure quest item | Giant Emerald Pill Millipede (Elusive) | Bone Net or Scorpion Net | ~80 unique species indexed to enter zone |
| Desert (April 2026) | Colossal Sandworm (Mythical) | Highest-value open-world spawn | Zenith and Supreme bugs | Scorpion Net or Dark Matter Net | Sandstorm event + Sandstorm Lure |
Priority targets drawn from community progression guides, Gamezebo walkthroughs and RoUniverse coverage. See the locations guide for full zone descriptions and the nets guide for the net upgrade path that unlocks each zone.
Every entry on this Catch Bugs bug list points back to a public source: a guide article, a community video or RoUniverse review. The full Catch Bugs Bugdex holds 300+ species; this list focuses on the bugs that drive progression: Secret Tomb keys, vivarium earners, Desert Mythicals and Celestial cave spawns.
Looking at Catch Bugs Secret Tomb requirements specifically? Open the Secret Tomb guide. Want the matching net upgrades? Browse the Catch Bugs nets table.