Okay, I confused everyone about the lady parts :D Hmmm, on a tarantula the lady parts are not all the same. On the red knee they look like what I outlined in red. On the chaco it looks like antenna. All females have the flap. This is a link to where someone made drawings of different tarantula lady parts. If you click the drawings they will get bigger. The last set of drawings and the one on the right shows what a chaco golden knee (G. aureostriata) look like (antenna like). While the mexican red knee lady parts look like the pics in the first set of drawings (kinda like the B. albopilosa). They are rough drawings but still helpfull IMO. So basically not all tarantula lady parts look the same but they all have the flaps :D I will post a pic of the chaco molt. I beleive you can see the flap but not the antenna looking things with the naked eye.
