For a given turboprop plane such as the ATR-72, there doesn't seem to be a pylon as on turbofan driven planes. This question: How are engines mounted onto wings? has answers that detail how a pylon is attached to the engine, but not how the pylon is attached to the wing itself.
What I want to know is how in the case of the ATR-72 or similar, are the turboprop engines, or pylons for turbofans are attached to the wing itself. Are they attached to a special type of rib? Are they attached to the spar(s)? Or both, or an entirely different structure designed for this purpose? How do they avoid concentrating the load?