Im stellaris wiki steht etwas anderes.
"The Swarm gets fleets at regular intervals on any system with a spaceport.
(monthly) If they no planet and army they get a fleet of 20 armies
(yearly) If their count of Infestors is under 4, they get a fleet of 5 Infestors
(yearly) If their count of Infestors is under 4 but they still have at least 10 ships total, they get a fleet of 3 constructors
(every 2 years) If their ship count is under 2000 and they have at least 1 owned planet left, a fleet reinforcements will spawn, based on the Brood Fleets. They always get 2 fleets, with a third fleet at 20% galactic border coverage and a fourth fleet at 40% border coverage. They may also get Constructors and Infestors with this reinforcement.
Prethoryn constructors will build starbases to expand their territory. Their stabases are as strong as citadels and modified by the Crisis Difficulty setting.
The Prethoryn Scourge use infestors instead of colony ships. They will land on uncolonized habitable planets and subvert the biosphere within a year. Any orbital bombardment will instantly interrupt the process.
Prethoryn transports will invade inhabited planets using ground armies for the sole purpose of purging the pops. During this phase the planet can be recaptured with ground armies. Once all populations have been purged the planets will become infested.
Infested Planets cannot be invaded. In order to get rid of the infestation, infested planets must be bombarded until their Surface Integrity reaches zero, at which point they will turn into a barren planet that can be terraformed.
If the Scourge overruns a ring world segment it will destroy it. Ring world segments destroyed by the swarm cannot be rebuilt. Overran habitats are destroyed entirely.
"
Das bedeutet doch das sie nur über invizierte Planeten Nachschub bekommen oder nicht? Sternenbasen zählen doch nicht dazu oder sehe ich das falsch?
Und noch ne Frage, kann ein infizierter Planeten den man durch Orbitalbombardierung gesäubert hat erneut befallen werden?