Silurio

Silurios are a sapient, spacefaring species from the planet Siluris, located thousands of light-years away from Earth.

Biology
Silurios are a physically diverse species which come in various shapes and in various shades of green. They have a single eye on their faces. Although they don't seem to have hair, at least some individuals can grow mustaches.

Culture and society
Silurios are an advanced civilization and regard themselves as powerful warriors, with a military arsenal capable of destroying not only a planet, but an entire solar system.

The gravest offence one can commit against a Silurio is to throw a pie in his face, which they regard as an extremely serious insult.

History
After Tulio Triviño offended the Silurio ambassador, the Siluris embassy to Earth was closed. The Silurios demanded that Triviño be surrendered to them and threatened to launch a humongous pie against Earth.