Oh, this one is "beautiful" even in her name: so much that she even made Argo look pretty! Alright, let's take a step back: in Greek mythology, Argo is the famous monster with a hundred eyes who sees everything, and our Lysandra (in Greek: "liberator") has many eyes on her wings too.
However, far from being frightening, Lysandra bellargus is a fantastic display of wide spotted eyes on a light background, so much so that it has earned the name "Adonis blue" (the blue adonis) among Anglo-Saxons. This lovely Lycaenidae is found in most of the warmer parts of Europe, but is absent from Norway, Sweden, Finland, the Mediterranean islands, and all but the southern counties of Great Britain. In addition to Europe it is also found in Turkey and eastward to the Black Sea. Lysandra bellargus and many other species have strikingly colored males, but relatively unshowy females. Males use coloration to confuse predators. If a bird sees the butterfly in flight or basking on a flower, it targets the bright blue image. The butterfly reacts to the threat by immediately resting on the ground and closing its wings, revealing the spotted underside against a grey background, an effective camouflage when resting on chalky ground. Females tend to move very little until mating. When searching for spawning sites, they tend to move slowly, and lighter colors are a better means of defense for them. Most females are dark brown, with almost no blue flakes, so they easily escape the attention of birds. Males patrol their habitat almost relentlessly, fluttering just above the grass in constant search of females. Periodically, however, they need to refuel and stop for a minute or two to sip nectar from clover, marjoram, or thyme flowers. Occasionally they visit taller plants including thistles and cornflowers. They have also been frequently observed gathering to feed on animal droppings.