This is a common tiger beetle in Alberta, but it is the first time I have managed to photograph a mating pair. This is the same species of beetle that I photographed last fall preparing burrows along the North Saskatchewan River, right in the parks system here in Edmonton. The shoreline here is a gravelly sandy clay, and their numbers seemed to be quite high in the area.
I tried to obtain shots of individual specimens, but they were not co-operative at all this spring. Thankfully, mating pairs are less prone to flee when disturbed.
(Photographed 19 May. Thanks to John Acorn for the ID.)