But i am pretty bad at ventral sexing to be honest. I always sex by moult! It is easier to ventral sex by look at the spider from the sides! Females epigynsl plate stands out and looks like a "bun" wheras male are totally flat from the side! Diffrent speicies and diffrent age females have mire or less a "bun" for ex, an adult female A geniculata has a karge "bun"