Tyriit
The Tyriit (also known as the Shadows) are a space-faring, highly aggressive species. Their aggressiveness has been historically directed towards the Ashderians.
Technology
Even though they have been encountered numerous times, not much is known about their technology. However, it has been noted that it is extremely adaptive.
Appearance
Not much is known about their appearance, for few have actually seen a Tyriit up close and survived to tell the tale.