- "This larval monster is said to live for 1,000 years, during which time it is continually growing. Though the larva is small in size, it is quite ferocious and is often found in swarms beneath the sand. It tends to leap toward moving objects such as yourself."
- — Fi
Arachas are enemies from The Legend of Zelda: Skyward Sword. Found in Lanayru Desert, they are larval creatures that can live for over 1,000 years. Any who live this long will grow into a Moldarach. They are often found in large numbers, and can be revealed when Link disperses piles of sand. Arachas also appear during the battle with Moldarach. Arachas will lunge at Link to harm him. If they lunge at Link, he does not take any damage and he can shake them off by rolling, using a Spin Attack, or shaking the Wiimote or Nunchuk repeatedly. If Link does not shake an Aracha off in time he will lose half a heart. Arachas are vulnerable to the Gust Bellows, which will flip them over, allowing Link to slay them easily. Link cannot use the Fatal Blow on an Arachas, but they can be defeated instantly by any sort of weapon. Even though Arachas are weak enemies, they can be dangerous in large numbers, often lunging at Link from behind.
As Arachas are based on scorpions, their name most likely comes from "arachnid." They also have pincers similar to those of a crab.