Himiko Crater

Thick clouds in the upper atmosphere have kept the surface of Venus and its contents a mystery. Humanity has always assumed the conditions on the planet were completely inhospitable and incapable of supporting any form of life.
However, insect-like creatures called the Gruzot  live on the surface of Venus in the Himiko Crater. They were able to terraform the planet to reduce atmospheric heat and pressure, bringing its 800 degree surface down to 150 on average. However, sulfuric storm] still roam the surface.
The Gruzot have built cities that The Carnax have been alerted to, invading the Himiko Crater area.