I'm not questioning your knowledge, just asking; where did you get this information?
I know that Centruriodes males mature faster than females (at least they reach sexual maturity faster), though I have never read any studies related to life span. I wouldn't be able to tell either way which lived longer. In my experience, females live longer, though that is VERY limited experience and I wouldn't make any universal claims based on it. Again, I was just wondering. I'd love to get some hard and fast proof.