Suspect female. Leaving this here with another shot lit from the top next to the shot bottom lit.
I think image on the left is showing uterus externus and the one on the right is showing the tiny spermathecae under it.
How can this be? This is a Grammostola grossa mature male. How can he be mature at such a small size? This is ridiculous - he isn't that much bigger than my Homoeomma chilensis mature male.
I thought I had a long time before this boy matured.