Male?

[AshS]

I think male, I can't see a flap. what do you guys think?

 

[EulersK]

It always helps to list species and size, but that looks male to me.

 

[sdsnybny]

I saved it and blew it up, could be female the upper book lungs are far enough apart for that to be true. It still looks scrunched up near the important area (center area between upper book lungs) try wetting that area with warm water, smoothing it out, and take a close up of that area to post. I think I see spermatheca, but not sure.

 

[AshS]

It always helps to list species and size, but that looks male to me.

Haha Forgot to put that in my excitement.
2.75" Acanthoscurria Geniculata

I saved it and blew it up, could be female the upper book lungs are far enough apart for that to be true. It still looks scrunched up near the important area (center area between upper book lungs) try wetting that area with warm water, smoothing it out, and take a close up of that area to post. I think I see spermatheca, but not sure.

I will have another look in the morning.