Planet of Origin: Venus
Veusian lifeforms had not acheived sentiance as of the 4th millenium and were only primitive savage monstrous lifeforms hidden in the planet's jungles.
Source: Beyond Infinity, by Nat Schachner Aka Chan Corbett, in Astounding Stories, Jan 1937.
The story tells of a series of invasion that befell Earth starting in 3195, as the universe unexpectedly starts to collapse on itself and the surviving species rush toward the worlds who are still unaffected by the phenomenon to delay their extinction. For some reasons, no mention is given that the invaders take any interest on settling on Venus.