Yes women can be paedophiles, anyone who thinks they can't is naive in my opinion.
It's like women can and do physically abuse men.. but someone society seems to focus mainly on the treatment of men towards others.
I remember once working in a nursery, years ago, where there was a male member of staff. He always had to be accompanied when changing a child, though he was Police checked! It was ludicrous that this had to happen, but as female members of staff, it was ok to change a child alone. Either you trust your staff no matter what sex they are or you should make sure they accompany each other all the time.
Who knows how many female paedophiles there are. It's seen as such a taboo subject that women could never do such a thing that I expect many are making their victims life a misery