OK, let's say we were a tad absent-minded and climbed further upstream without seeing anything like orange nets: are we sure that a new, delightful trap is not waiting for our eyes?
The realm of Boloria selene is a bit cooler than that of its close relative Boloria pales, but its bright orange wing netting... certainly no less fascinating! This butterfly from the nymphalid family is a lover of high altitudes. We can find it, in fact, in high meadows, but only above 2000 meters of altitude, in humid areas full of violets, on which the caterpillar feeds. In Italy we find it spread in the Alps, but there are also populations in other areas of Europe, such as Germany, Sweden, England, and of the world, for example North America and Asia.