I've got a chile chocolate. bothriurus coriacius is the latin name, but there doesnt seem to be much information about them anywhere that i can find. I did manage to find out a bit tho by asking around, they LOVE to burrow, if you get one then be prepared to hardly ever see it! Temp wise, not too hot, the areas they come from can get mighty chilly, they can spend weeks if not months snowed in to their burrows, jut like chile rose tarantulas! mine doesnt have a heat mat, but his tank is on top of another viv which is pretty warm, so he gets heat from there. they don't like it too wet/ humid either, I just give him a bit of a spray every week or so and he's done fine the past year or so I've had him. They dont get very big, I've been told different things, from the sounds of it even a big mature female wont be more than about 6 or 7cm, males a couple of cm smaller.
Mine is in a smallish plastic tank about 7" deep, half filled with substrate, with a piece of bark buried at an angle which he has burrowed underneath. He has a small bottle top with water in and a few small rocks too. He is about 3 and a half cm at present and seems to be doing just fine in here.
Hope this is of some use to you.
R.