Flashlight Anode Beetle

The Flashlight Anode Beetle is an airborne, night-only species of scarab beetle in Pikmin Z. It looks similar to the grounded Anode Beetle but it's smaller and can fly around. It is completely harmless and can create a small amount of light from its abdomen. One Pikmin is enough to knock it out of the air and kill it.

Piklopedia entry

 * "This small insect can generate the electricity in itself into a sort of light during the night time hours, as a form of communication. There's not too much else known about it."