The Electric Spectralid is a member of the Floaterbie Family in Hey! Pikmin. They are butterfly-like creatures with the ability to create electricity with its body.
They usually live in dark caves where they use their electricity to generate light and navigate in the dark. When they spot Captain Olimar, they will try to dive bomb into him and harm him while dying in the process.
Hey! Pikmin Log
"It prefers to live in dark caves, which is odd since it generates its own light. Beware of its electric tackles! If only it could be tamed, it would go over well as a house pet. Imagine having a faithful companion that could also light your home!"