ThereIn the existing movies, there are no references to the female Predators, although they are speculated to be in the upcoming The Predator movie. However, there are a few notable Female Yautja (that are actually named characters) in the books and graphic novels:
Big Mama - From the comic AvP: Deadliest of the Species. A big Predator with no female features (breasts) and no special armor/costume. She is actually quite badass and survives the hunt.
Sister Midnight - from the Witchblade/Aliens/Darkness/Predator: Mindhunter crossover comic. Looks feminine, has breasts and has a dress like costume. Has a special relationship with Witchblade, fights some Aliens, detonates her self-destruct and dies.
Vagouti - From the Predator: If It Bleeds novel story Rematch (the story is a sequel to the book Predator: Turnabout). There is not much physical description on her but she is hunting together with her mate. They are both killed by humans.
There is also Machiko Noguchi, who is a human female who joined the Predators (she is often mistaken for a female Predator). There is more information and pictures about them here: Female Yautja