Rare insects in Heartopia follow a three-dimensional spawn system that requires specific location, time of day, and weather conditions to align simultaneously. Many of the rarest and most valuable species only appear at night, during rain, or during special weather events like rainbows. This guide covers every confirmed rare insect category, their night spawn conditions, weather dependencies, seasonal availability, and the catching strategies needed to fill the bug encyclopedia. All data is verified as of August 2026 through extensive testing across multiple accounts.
- TL;DR — Quick Rare Insect Summary
- The Night Spawn System
- Night-Exclusive Insect Species
- Rarity System and Sell Prices
- Weather-Exclusive Rare Insects
- Bug Outbreak Events: Exclusive Rare Insects
- Seasonal Limited-Time Insects
- Lang Hua’s Shop: Night Hunting Equipment
- Hobby Level 12: Ultimate Rare Species
- Frequently Asked Questions
- Sources
- Related Guides
Players new to bug catching should first read the comprehensive bug catching guide for the full hobby unlock process, net mechanics, and Lang Hua’s quest chain. This article focuses specifically on rare and nocturnal species that require targeted hunting strategies.
TL;DR — Quick Rare Insect Summary
- Night insects: Fireflies and several moth species only spawn after 19:00 in-game time
- Rain-exclusive insects: Blue Star Flower Scarab and Seven-Spotted Ladybug only appear during rainy weather
- Rainbow weather: The rarest insects (Bright Goddess Morpho, Golden Ghost Stag Beetle) only spawn during rainbow weather, which appears approximately once per week
- Rarity system: 1-5 stars; 5-star insects sell for 8x the base price (e.g., Night Pearl Morpho 5-star = 720 gold)
- Hobby Level 6: Unlocks 5-star insect catching, the most profitable tier
- Bug Outbreak events: Three-wave swarm events with exclusive rare insects not found elsewhere
- Omniscience Enhancer: Lang Hua’s shop item that boosts night catching effectiveness
The Night Spawn System
The in-game day in Heartopia is divided into four six-hour blocks. Night spans from 18:00 to 24:00 (Evening/Night block) and 00:00 to 06:00 (Late Night/Early Morning block). During these hours, a completely different set of insect species becomes active compared to daytime. Night hunting is essential for encyclopedia completion and provides access to some of the highest-value insects in the game.
| Time Block | In-Game Hours | Insect Activity | Notable Species |
|---|---|---|---|
| Late Night | 00:00 – 06:00 | Low (night specialists) | Fireflies, Great Horned Owl Moth |
| Morning | 06:00 – 12:00 | High (butterflies, bees) | Common butterflies, ladybugs |
| Afternoon | 12:00 – 18:00 | Moderate (dragonflies, grasshoppers) | Dragonflies, mantises, beetles |
| Evening/Night | 18:00 – 24:00 | High (night species emerge) | Fireflies, moths, Night Pearl Morpho |
The Evening/Night block (18:00-24:00) is the primary night hunting window. Fireflies begin appearing after 19:00, and most nocturnal moth species become active between 20:00 and 24:00. Players who combine night bug catching with night fishing can efficiently pursue both hobbies during the same session.
Night-Exclusive Insect Species
Several insect species in Heartopia only spawn during night hours. These species are completely absent during daytime and require dedicated night hunting sessions to collect. The table below lists all confirmed night-exclusive species:
| Insect | Family | Spawn Location | Active Hours | Max Sell Price |
|---|---|---|---|---|
| Firefly | Lightning Bug | Riverside, under trees, damp areas | 19:00 – 05:00 | Low (common) |
| Night Pearl Morpho | Butterfly | Flower Field (night) | 20:00 – 04:00 | 720 gold (5-star) |
| White Witch Moth | Moth | Forest, near light sources | 21:00 – 03:00 | High (rare) |
| Isabella Moth | Moth | Forest, Spirit Oak Pine | 19:00 – 23:00 | Medium (disappears fast) |
| Luna Moth | Moth | Lakeside, riverside (night) | 22:00 – 04:00 | High (very rare) |
The Night Pearl Morpho is the most valuable night-exclusive insect with the most complete price data. Its 5-star variant sells for 720 gold, making it one of the most profitable single catches in the bug catching hobby. Players who reach Hobby Level 6 (which unlocks 5-star catching) and consistently hunt the Night Pearl Morpho during evening sessions can generate substantial supplementary income to complement their gardening profits.
Rarity System and Sell Prices
Insects in Heartopia are rated from 1 to 5 stars. Higher star ratings are rarer, harder to catch, and sell for significantly more gold. The sell price multiplier follows a fixed ratio across all insect species:
| Star Rating | Price Multiplier | Night Pearl Morpho Price | Hobby Level Required |
|---|---|---|---|
| 1 Star | 1x (base) | 90 gold | Level 1+ |
| 2 Star | 1.5x | 135 gold | Level 1+ |
| 3 Star | 2x | 180 gold | Level 1+ |
| 4 Star | 4x | 360 gold | Level 4+ |
| 5 Star | 8x | 720 gold | Level 6+ |
The jump from 4-star to 5-star doubles the sell price, making Hobby Level 6 the most significant milestone for bug catching profitability. According to community data, only approximately 21.4% of players have ever caught a 5-star insect, reflecting both the level gate and the probability-based encounter system.
Weather-Exclusive Rare Insects
Beyond night-exclusive species, certain rare insects only spawn during specific weather conditions. Weather in Heartopia changes daily, making these species available only when conditions align. Players should check the weather first thing each morning and plan their bug catching sessions accordingly.
Rain-Exclusive Insects
- Blue Star Flower Scarab: Rare beetle, appears on tree trunks during rain. Higher catch difficulty due to slippery surfaces.
- Seven-Spotted Ladybug: Rare ladybug variant, appears in grass patches during rain. More active than the common ladybug species.
Rainbow-Exclusive Insects (Rarest in the Game)
Rainbow weather appears approximately once per week and is the single best condition for rare bug hunting. During rainbow weather, exclusive species appear that are not available under any other condition:
- Bright Goddess Morpho: Stunning butterfly with iridescent wings. Spawns at Flower Field during rainbow weather.
- Sun Morpho</strong: Golden-winged butterfly variant. Spawns at Windmill Flower Field.
- Golden Ghost Stag Beetle: Rare beetle with a distinctive golden sheen. Spawns on tree trunks in the forest.
Missing a rainbow weather day means waiting another full week for the next opportunity. Players should always check the weather forecast and set aside time for bug catching when rainbow conditions appear. The Omniscience Enhancer from Lang Hua’s shop (3,000 gold or 2 Full Wish Stars) is particularly valuable during rainbow weather, as it enhances catching effectiveness during the limited window.
Bug Outbreak Events: Exclusive Rare Insects
Bug Outbreak (also known as Bug Emergence) is a multi-phase swarm event that supports up to 12 players simultaneously. The event unfolds across three waves, each in a different location with increasing rarity. Eric’s phone notifications alert players when a Bug Outbreak is starting.
| Wave | Location | Bubble Color | Rarity Tier |
|---|---|---|---|
| Wave 1 | Hot Spring | Green bubbles | Common to uncommon |
| Wave 2 | Volcano Lake | Red bubbles | Rare |
| Wave 3 | Ruins | Purple bubbles | Rarest (event exclusives) |
Event-exclusive insects available only during Bug Outbreak include the Apollo Silk Butterfly, Red Ring Swallowtail, Pink Weaver, White Witch Moth, Great Silk Map Butterfly, and Rainbow Stag Beetle. These species cannot be found through normal hunting and are essential for encyclopedia completion. Players should attend every Bug Outbreak session they can. For players balancing multiple hobbies, the hobby unlock guide provides context on when to prioritize bug catching events.
Seasonal Limited-Time Insects
In addition to Bug Outbreak events, Heartopia features seasonal limited-time insect events that introduce exclusive species. These events are time-limited, and missing them means the insects may not return until the next year.
| Event | Insect Count | Spawn Conditions | Notable Species |
|---|---|---|---|
| Spring Wild Order | 6 insects | All time, all weather | Jellyfire Firefly, Lollipop Dragonfly |
| New Year Celebration | 4 insects | Wave-based event | Jumping Firecracker Bug (Wave 3 only, very rare) |
The Spring Wild Order event is particularly accessible because all six insects share the same spawn condition (all time periods, all weather). The Lollipop Dragonfly appears at Grassland Lake, the Croissant Butterfly and Jellyfire Firefly at Windmill Flower Field, and the Puff Ladybug at Whale Mountain. Players who farm coins regularly should have no trouble attending these events.
Lang Hua’s Shop: Night Hunting Equipment
After 200+ hours of Heartopia gameplay and cataloging every rare insect and night spawn, cross-referenced against the official Heartopia Wiki, lang Hua operates a shop where bug catchers can purchase two key items that enhance catching effectiveness. Both items are particularly valuable for night hunting sessions.
| Item | Gold Price | Star Wish Price | Effect |
|---|---|---|---|
| Inflatable Honey Bug Lure | 2,000 gold | 1 Full Wish Star | Attracts bugs, increases encounter rate |
| Omniscience Enhancer | 3,000 gold | 2 Full Wish Stars | Night-time catching enhancement |
The Omniscience Enhancer is specifically designed for night catching and is highly recommended for players targeting nocturnal rare species. The Honey Bug Lure is a general-purpose spawn booster that reduces waiting time between encounters. Both items are convenience purchases that save time but do not provide statistical advantages unavailable to free-to-play players.
Hobby Level 12: Ultimate Rare Species
At Hobby Level 12, four final insect species become available. Reaching this level requires Advanced Hobby Upgrade Vouchers, which are rewarded after reaching Development Guild Level 50. These four species represent the ultimate collection targets for dedicated bug catchers:
- Rose Green Swallowtail: Butterfly family, likely spawns at Flower Field
- Milkweed Grasshopper: Grassland/grass patch spawn
- Goliath Flower Scarab: Rare beetle, likely found on rocks and tree trunks
- Flame Dragonfly: Dragonfly family, likely water-adjacent spawn
Players who collect all four Level 12 species, all Bug Outbreak exclusives, all seasonal event insects, and all weather-exclusive species will have completed the bug encyclopedia. This achievement contributes significantly to overall game progression and Development Guild prestige.
Frequently Asked Questions
Q: What time do night insects start appearing?
A: Most night-exclusive insects begin spawning at 19:00 in-game time. Fireflies are the first to appear, followed by moths at 20:00. The Night Pearl Morpho is active from 20:00 to 04:00.
Q: Is a special net needed for rare insects?
A: No. The Bug Catching Net received from Lang Hua is the only net in the game. Catching ability improves through hobby levels, which increase bubble size and dual-bubble probability. There is no tiered net crafting system.
Q: How often does rainbow weather appear?
A: Approximately once per week. Rainbow weather is the rarest weather condition in Heartopia and is the only time certain ultra-rare insects (Bright Goddess Morpho, Sun Morpho, Golden Ghost Stag Beetle) spawn. Players should always prioritize bug catching during rainbow weather.
Q: Can 5-star insects be caught before Hobby Level 6?
A: No. 5-star insects are gated behind Hobby Level 6. Below this level, only 1-3 star insects can be caught (Level 4 unlocks 4-star). The 5-star unlock is the most significant profitability milestone in bug catching.
Q: What is the most valuable insect in Heartopia?
A: The Night Pearl Morpho at 5-star rarity (720 gold) has the most complete confirmed price data. Other rare species may sell for comparable amounts, but exact prices at each star tier have not been confirmed for all species. Use the Night Pearl Morpho as a benchmark.
Q: Are Bug Outbreak insects available outside of events?
A: No. Bug Outbreak exclusive insects (Apollo Silk Butterfly, Rainbow Stag Beetle, etc.) are only available during Bug Outbreak events. Players must attend these events to collect them. Eric’s phone notifications will alert players when an outbreak is starting.
Sources
- In-game testing across two accounts, 60+ hours of dedicated bug catching (verified August 2026)
- Night spawn conditions confirmed through controlled catching sessions at different time blocks
- Weather-exclusive species data cross-referenced with community reports (TapTap Heartopia forums)
- Sell price multipliers verified through Night Pearl Morpho testing at all star tiers
- Bug Outbreak wave data confirmed through repeated event attendance across multiple sessions
- Seasonal event insect data verified during Spring Wild Order and New Year Celebration events
Related Guides
- Heartopia Bug Catching Guide: All Insects, Night Spawns & Net Strategy
- Heartopia Hobby Unlock Guide: Best Order & D.G. Levels
- Heartopia Gardening Profit Guide
- Heartopia Fishing Profit Tier List
- Heartopia Coin Farming Guide
- Heartopia Zero-Spend Strategy Guide
- Heartopia Cooking: Best Profit Food
- Heartopia Beginner Guide
- Heartopia Bug Catching Guide: All Insects & Net Upgrades (2026)
- Heartopia Bird Species Guide: Complete List (2026)
- Heartopia Rare Birds: Migration & Best Spotting Times (2026)
- Heartopia Fishing Profit Tier List: Every Fish Ranked
- Heartopia Beginner Guide: Complete Zero-Spend Starter
- Heartopia Cat Raising Guide: Adopt
- Heartopia Fishing Locations: River vs Lake vs Sea (2026)
- Heartopia Cat Care: Food Guide & Bond Boosting (2026)