Vengefly

"Flying predator that pursues its prey relentlessly. This fierce little hunter will bravely chase down creatures many times its size. Admirable! It is weak though, and I have devoured hundreds of them with little effort or care."

Vengeflies are enemies in Hollow Knight. They are flying predators who inhabit many areas in Hallownest, although the Vengefly King is native to Greenpath.

Behaviour and Tactics
Hovers in the air, moving around a small area. Emits a squawk before homing in on the Knight when they come in range.

One of the first and easiest enemies in the game. Either wait and strike when it gets within range, or jump and strike down at it. Either way, it will continue to move towards the Knight, making it possible to stay in one place and continue attacking until it is dead.

Location
Vengeflies can be found in the Howling Cliffs, King's Pass, the Forgotten Crossroads, Greenpath, the City of Tears, the Colosseum of Fools, and the Blue Lake. They can also be spawned by the Collector and Vengefly Kings.

All but one of the Vengeflies in the Forgotten Crossroads are replaced by Furious Vengeflies when it becomes Infected.

Trivia

 * The Vengefly is one of the few enemies that respawns upon leaving and re-entering the room.
 * Vengeflies spawned by the Vengefly King in Greenpath still drop Geo.
 * In a Kickstarter update, it was referred to as Vengeward Buzzerfly:
 * "Once this flying predator has caught sight of its prey, it will hunt it relentlessly through the darkness."