Musca Fly (蠅座（ムスカ）のフライ, Musuka no Furai) is the traitorous, overweight Musca Silver Saint, who tries to steal Kouga and Yuna's Bronze Cloths, to be promoted within Mars' ranks. Fly can use the element of Wind.
Musca Fly is considered loyal to Mars. Fly has a personality that is very cowardly, as he tried to steal the Cloth of the Bronze Saints, to get a promotion. He also has a rare personality and disgusting to show the way. Fly thought Bronze Saints are weak and fragile, but after being defeated by the Bronze Saints, Fly feel the biggest insult.
When Koga and Yuna venture into the Wind Ruins, they discover that Fly has been designated to protect this place by Sonia , daughter of the god Mars. Fly leaves them both out of action with his Virus Sand art and tries to steal their armor to offer them as an offering to Mars, hoping to get a promotion to a Gold Saint. But Kouga and Yuna awaken and stand up, so that Fly uses his technique, Fly Slider, against Koga, getting counterattacked with Koga's technique, Pegasus Ryūsei Ken, which ends his life.
In the version of Saint Seiya Omega, the design of the cloth made a radical change, which has been completely repudiated by fans, calling it the worst armor that has appeared in Saint Seiya. Musca Fly's Omega version cloth is more robust due to him being obese and also the cloth color changed to green.
- Sand Virus (サンドウイルス, Sando Uirusu): Disgusting attack based on the dark element control performed by Musca Fly . Fly breaths a particulate dark violet breath toward his rival, when these particles reach their goal to expand fully and quickly surround him immobilized and absorb the energy of this who just fainted because of the loss of life force.
- Flight Slide (フライスライダー, Furai Suraidā): an attack by Musca Fly which uses brute force and the wind element. Fly flies through the air is driven by a big jump up, then starts to spin rapidly on its axis as if it were human spin when it reaches its maximum speed, Fly strikes with violence on the body of his opponent.
Musca (Latin for Fly) is a minor southern constellations. The constellation created by Pieter Keyser and Frederick Dirkszoon de Houtman between 1595 and 1597, and first appeared in the book by Johann Bayer Uranometria 1603. Muscae alpha, the main star Beta Cephei is a variable with a variation of brightness of 0.05 magnitudes with respect to magnitude half (2.69). Another object of interest in the constellation is Gliese 440, the fourth nearest white dwarf to the solar system, located 15 light years away. Musca contains the soft X-ray transient Nova muscae 1991, a binary system consisting of a star and a black hole. During the explosion of 1991, which led to his discovery, was detected positron annihilation radiation from.lol