Chykka was a massive dragonfly-like creature that lived in the Dark Torvus Bog on Dark Aether. The Chykka was born as a larval form, which cocooned itself to turn into the Chykka Adult. If the Chykka Adult is exposed to the poisonous water of Dark Aether, it will transform into the Dark Chykka, which can hatch mutated Chyklings, miniature adults who have skipped the larval stage entirely. This creature is fought in Metroid Prime 2: Echoes as the Guardian of Dark Torvus Temple. Defeating it earns Samus the Dark Visor.