From the Super Mario Wiki
A Thunder Lakitu is a Lakitu that shoots out a ball of energy, setting the ground on fire. They make their only appearance in Super Mario World 2: Yoshi's Island, and its remake Yoshi's Island: Super Mario Advance 3 level, BLIZZARD!!!. The player will eventually know when a Thunder Lakitu is about to attack because these sun-burnt Lakitus make a loud noise and the screen flashes when they attack.
In Mario Power Tennis, the Thunder Lakitu has a major appearance in the DK Jungle Court. They are able to clear the field from Klaptraps, by burning them with thunderbolts in the gimmick courts mode. Here, their skin is that of a normal Lakitu, but they still have the odd decoration on their shells.