Cognitive and cultural embeddedness: combining institutional economics and economic sociology
According to this, pederasty is sexual relations between two males, especially when one of them is a minor. Other definitions, like the one that JSBangs found, differ slightly. But otherwise, I think you answered the question yourself: pedophile refers to the attraction, while pederasty refers to the act itself.
Las Casas tells us that pederasty was tolerated because they believed that their gods practiced it. The Works of Hubert Howe Bancroft, Volume 2 Hubert Howe Bancroft It is very doubtful whether he was a Huguenot, and whenever in his works he refers to pederasty it is with strong disapproval.