Essentially, rape and rape of a child under 13 ('Statuatory' rape is an Americanism), are the same thing. The only difference is that there's no defence consent. Although obviously can be mitigation. In offences rape with a child over 13, and below 16, you have to prove there was no consent, and there is a defence, if not charged with rape, but of sexual activity with a person under 16, that there was a belief they were over 16.
However, that said, the moment any one mentions pedophile the automatic conclusion and commonly held belief everyone jumps to is a person under 16. And hell and damnation follow. Forgetting of course that many of us here had our first sexual experience with someone under 16, or condoned it by being the person under 16!