Darkian
From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
The Darkians (暗黒星人, Ankoku-seijin) are a race from Planet Dark.
History
The Darkians' homeworld was pitch blackness and located in the deepest corner of the universe. One of the special abilities of this race was eating light energy. Yakon (the only Darkian seen in the series) ended up eating too much of Son Goku's Super Saiyan energy and exploded. Yakon was also a Majin, but may not have always been under Babidi's control.