Arrowhd...my GBB has this also..can your or someone else tell me what that random hair patch in the middle of their abdomen is? like why is that there for..it looks out of place.Chromatopelma cyaneopubescens is one of my favorite species. I can't think of any draw backs. Yes they are a little on the nervous side but so is my B. smithi. This is a picture of mine. Its around and inch in size.