SMAD

They come from Planet Svokk, constellation Battteray.

Their ships have a conical shape.

They resemble Humans in appearance.

According to 1 alien race they only have 6 ships left.

They colonized 20 planets, 18 of them were inhabited.

They first visited Earth 2.500 years ago and are very interested in our religious beliefs.

They are a race in decline ("weakening", according to other alien races.