I recently bought an issue of a fiction magazine from Barnes and Noble. It had eight stories in it. The stories were all written with men, and they all had male main characters. One had a woman character who was involved in the crime. I went to a con and picked an anthology that had eleven stories written by male writers. None of them had women characters.
Julie Crisp over at Tor.com UK says that women aren’t submitting to some of the genres. The discussion is interesting, too, and I believe all of it is true in some form or another. Obviously, the percentages of women writers contributing are affecting the selections, though I would be curious to see what would happen if submissions were done anonymously. But women writers, get your writing out there. If you want to see stories by women and with women, you have to write them.