Do the Avicularia diversipes males look different than the females?. i posted a photo of my unsexed A. diversipes as its lost his spiderling coloration. reason im asking because the reaction i got were: are you sure its not a mature male?
The females and males look pretty similar in terms of adult coloration, males are just much leggier. It's hard to tell from your pic, best way to tell if it's a mature male is to check for clubbed pedipalps.