The Invid bases which exert regional control are called hives in reflection of their centralized command heirarchy under their queen, the Regess.
A large network of hives, such as the one at Reflex Point, can maintain Invid domination on a planetary scale.
The giant Invid hive complex at Reflex Point is visible from space.
A hive glows bioluminescent blue at night.
Smaller Invid hives are often found constructed in various different forms.