Pale green weevil - Polydrusus impressifrons

We were camped just outside of Waterton National Park at a place called Crooked Creek Campground. It was a five minute drive to the park and turned out to be a great launching point for our adventures. I took some time while at the camp to look for any interesting insects to photograph and I came across a small, light green beetle. I used my macro equipment to capture images and then came upon more of them that were engaged with mating (see below). The insects were always found on leaves of the same kind of plant. They tend to prefer shrubs belonging to willow ( Silex ) or poplar ( Populus ). They will eat the leaves of fruit trees and can damage young trees. The same is true for the grubs (larval form of beetle). They burrow in the soil and feed on the roots of preferred vegetation. Their presence does not usually adversely affect the shrubs or trees themselves unless the plants are young. These weevils are not native to North America. ...