Lysian

The Lysians are a sapient, spacefaring species whose war against the Satarrans has been going on for decades, as of 2368.

Culture and society
Lysians and Satarrans are evenly matched in terms of military technology, and both are easily outmatched by Federation ships, to the point of posing no direct threat to the latter.

Their government is called the Lysian Alliance. Information planted on the Enterprise computer by a Satarran agent describes them as a genocidal race, although this is likely to be fabricated.

Appearances

 * Star Trek: The Next Generation, s05e14, "Conundrum" (1992) (only their ships are seen)