Firefly

The Firefly is a bug in the that has appeared in every game to date. The Firefly occasionally emits bioluminescence as it flies around. In earlier games, the Firefly appears as only a small glowing yellow orb, but starting with, it has a more realistic appearance.

In the games that the Firefly appears in, it is the most common bug that the player can encounter, and can be found flying around fresh water bodies in the night. In, it can be caught in the first month of summer.

Donating to the museum
As with all insects in the, the Firefly can be donated to the museum followed by a small talk by Blathers, the curator.

In
The Firefly can be found hovering over the pond in the first room of the Bugs exhibit.

In
It can be found hovering over the small pond to the bottom-left in the bottom terrace, occasionally.

In
After being donated to the museum, the Firefly can be found periodically hovering over a small pond in the first room of the insect exhibit. The exhibit says the following:

In
After being donated, fireflies can be found hovering above the pond that surrounds the "quiet bench" area in the main bug exhibit.

Real-world information
The lampyridae, colloquially known as the firefly or lightning bug, is an insect most notable for its bioluminescence. In this regard it is similar to the jellyfish. Oddly enough, there are many species that do not produce light at all.