So will the spider in my photo eventually lose most of its color and get a pale brown with very little markings?
Let it bite you. If your arm turns black and almost falls off and you feel like dieing, then its a female and will probably turn black........If it bites you and nothing but a little welt appears its a male.

Honestly Travis, that would be my guess, but like I said , they tend to get the boot prior to any skirt lifting.
