Green Firefly

Green Firefly is a critter found in caves and can be caught with a Net. Like other fireflies and cave critters, it is part of the ambient wildlife that can be collected rather than defeated, making it useful for players who want to gather creatures for transport or other purposes.

It appears naturally in underground cave areas and behaves as a catchable item-type critter rather than a hostile unit. Since it is caught with a Net, approaching it carefully is enough; no combat is required.