The spider is unsexed, it is impossible to sex it at that size except if you have really expensive hi tech microscope wich I doubt they have. Versis are known to be active until they make their web. My big girl is always out and waiting to get some food, she even moved after half an year to the other side of the enclosure, abandoning the old web home.Are Avicularia versicolor normally pretty active? I got a 1/2 inch female a couple of weeks ago and she's always moving around.
Yeah, the best of the pet stores that I occasionally go to "GUARANTEES" that all of their T's are female . . . . . the only one I ever bought from them turned out to be a penultimate male, and I've seen 3 MMs for sale in there since (along with several that may actually be female).