Advertisement Hello. Lately there has been allot of sexing on here so I figured that I would help out. What I have here for a pic is of a Female adult Brachypelma vagans. Approx size now is 6". You can clearly see the 2 sets of booklungs and also the "infamous" area where the flap is on females. P.S. (BOARD MODS).....If this should be in another place. Just let me know.