This thread made me check for the same in italian:
For white aliens there isn't anything in the brackets, for blue aliens I think instead of "hard" it should ne be "difficile" (not 100% sure).
The "starting fleet" for aliens is translated in german instead of italian.
The time left for an alien wave shouldn't be "sinistra", it means "left" in the sense of direction. I don't know the right translation here.