Gender doesn't seem to mean much with the krill people/hive. Oryx was a female too at one point but it's been millennia and Taox isn't exactly trying to be recognizable as who they once were. Where else would they go to flee from the Hive? And I don't put much credence in "I know I saw it somewhere once" arguments. You can go read the Speaker card right now and see that nowhere does it mention any race or point of origination for the Speaker.