This is a "click beetle" (Coleoptera, Elateridae). They have this name because of the loud _click_ sound they produce. They are related to fireflies (Lampyridae), and some click beetle species are themselves luminescent.
According to the link above:
> A spine on the prosternum can be snapped into a corresponding notch on the mesosternum, producing a violent "click" that can bounce the beetle into the air.
I don't know about those North American beetles, but in South America I've seen click beetles jumping more than 30cm in the air.
Here is a photo of a click beetle in Montreal, from the Pest Control Canada website, which looks like your specimen:
![enter image description here](
Unfortunately, the entomologist that identified the animal in the photo above didn't narrow it down to Genus or Species.