Just a bit of trivia here - relating to coloring.

The wing color is interesting on these. Generally, in the southwest, the ones at low elevation out of the mountains are orange-winged, while the ones in the mountains are yellow-winged (often with less noticeably blue hind tibiae), and the higher one climbs, the smaller and more slender they are. So, generally if you're in the desert, in desert grassland, or out on the Great Plains, they are orange (or sometimes other reddish hues). However, sometimes they don't read the rules, and a mismatches show up in inexpected places. The wings can be yellow, orange, red, pinkish, and about any shade in between. Some populations (especially in the Rockies and northward it seems) can have all the wing colors in one place. In the north, they usually don't have blue tibiae at all. That's part of why there are so many synonyms for this species.