Advertisement I couldn't find anything about this except some very generalized remarks about size - which is just guess work. Is there any way to reliably tell if a female is adult? I don't want to breed or anything it's just scientific curiosity. I already know that adult females only molt once a year or less, but is any T that will only molt once a year already adult? With fast growing species I'd say yes, but my B. smithi only molts once a year and she's only 5" at best - is she adult? Are there any other signs?