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Thin wings hide a highly volatile belly. Will give its own life to protect its territory.

An angry creature with no regard for its own life. A creature without fear... can it truly be called "prey"?

Belflies are enemies in Hollow Knight. They are quick, highly volatile flying creatures who dive at prey with no sense of self-preservation.[1][2]

Behaviour and Tactics

Hangs from a ceiling, emitting a high-pitched squeak. Listen carefully for this sound as it is usually found in dark or secluded places, where spotting it usually means that it is too late to avoid contact with it.

Upon seeing the Knight, it emits a louder shriek, exposes its glowing belly, and then swoops down on the Knight, exploding on contact, dealing two Masks of damage.

Its homing is limited to a wide arc about 90 degrees below it, after which it continues in an arc until making contact with either the environment or the Knight. Dodge away when it dives in and let it explode against the surface it impacts. The blast also instantly kills any enemy in its area of effect.

It is possible to kill it before it dives as it dies in one hit even with the un-upgraded Nail; however, timing and spacing this is difficult. The Longnail and Mark of Pride Charms both make this easier. Spells, Nail Arts, and the Grubberfly's Elegy Charm can be used to dispose of it from a distance. Minion Charms, such as Weaversong, Glowing Womb, and Grimmchild, can also attack them when they are idle and safely dispatch them.

Lifeblood content If a Belfly kills itself, it still counts towards its Journal entry.

Dream Nail Dialogue

  • ...Light...Danger...
  • ...Safe...Dark...
  • ...Hungry...Hungry...
  • ...Scared...
  • ...Kill...Hurt...
  • ...Away. Away...
  • ...Pain...
  • ...Eat...When...


Belflies can be found mainly in the Royal Waterways and Kingdom's Edge; however, they can also be found in smaller numbers throughout the City of Tears, the north part of Ancient Basin, and the Resting Grounds. Belflies are also in the Colosseum of Fools, during waves 6 and 7 of the Trial of the Conqueror and wave 4 of the Trial of the Fool.



  • Though the timing is difficult, the Dream Nail can be used to push Belflies away from the Knight and avoid taking damage.
  • Belflies do not drop their shell if they are killed before reaching the ground.


  1. Wanderer's Journal, p. 73.
  2. Belfly Hunter's Journal entry: "An angry creature with no regard for its own life."
Hollow Knight Enemy Compendium
EnemiesBossesHealth ValuesColosseum of FoolsGodmaster content Hall of GodsGodmaster content Pantheons
Main Game
Forgotten Crossroads CrawlidVengeflyVengefly KingGruzzerGruz MotherTiktikAspid HunterAspid MotherAspid HatchlingGoamWandering HuskHusk HornheadLeaping HuskHusk BullyHusk WarriorHusk GuardEntombed HuskFalse Knight (Failed Champion) • MaggotMenderbugLifeseedBaldurElder Baldur
Greenpath MosscreepMossflyMosskinVolatile MosskinFool EaterSquitObbleGulkaMaskflyMoss ChargerMassive Moss ChargerMoss KnightMossy VagabondDurandooDurandaAluba
Fog Canyon Charged LumaflyUomaOomaUumuu
Fungal Wastes AmbloomFunglingFungoonSporgFungified HuskShrumelingShrumal WarriorShrumal OgreMantis YouthMantis WarriorMantis Lords
City of Tears Husk SentryHeavy SentryWinged SentryLance SentryMistakeFollySoul TwisterSoul WarriorSoul Master (Tyrant) • Husk DandyCowardly HuskGluttonous HuskGorgeous HuskGreat Husk SentryWatcher KnightCollector
Royal Waterways BelflyPilflipHwurmpBluggsacDung DefenderFlukefeyFlukemonFlukemarm
Crystal Peak ShardmiteGlimbackCrystal HunterCrystal CrawlerHusk MinerCrystallised HuskCrystal Guardian (Enraged)
Infected Crossroads Furious VengeflyVolatile GruzzerViolent HuskSlobbering Husk
Deepnest DirtcarverCarver HatcherGarpedeCorpse CreeperDeeplingDeephunterLittle WeaverStalking DevoutNosk
Ancient Basin Shadow CreeperLesser MawlekMawlurkBrooding MawlekLightseedInfected BalloonBroken Vessel (Lost Kin)
Kingdom's Edge BooflyPrimal AspidHopperGreat HopperGrub MimicHivelingHive SoldierHive GuardianHusk Hive
Queen's Gardens Spiny HuskLoodleMantis PetraMantis TraitorTraitor Lord
Colosseum of Fools Sharp BaldurArmoured SquitBattle ObbleOblobblesShielded FoolSturdy FoolWinged FoolHeavy FoolDeath LoodleVolt TwisterZoteGod Tamer
Warrior Dreams XeroGorbElder HuMarmuNo EyesGalienMarkoth
White Palace WingmouldRoyal RetainerKingsmouldSiblingVoid Tendrils
Story Bosses Hornet (ProtectorSentinel) • Hollow KnightRadianceShadeHunter's Mark
Content packs
Hidden Dreams content Hidden Dreams Grey Prince ZoteWinged ZotelingHopping ZotelingVolatile ZotelingWhite Defender
Grimm Troupe content The Grimm Troupe Grimmkin NoviceGrimmkin MasterGrimmkin NightmareGrimmNightmare KingSeal of Binding
Lifeblood content Lifeblood Hive Knight
Godmaster content Godmaster FlukemungaPale LurkerSisters of BattleWinged NoskNailmasters Oro & MatoPaintmaster SheoGreat Nailsage SlyPure VesselAbsolute RadianceVoid IdolWeathered Mask