The Giant Silkworm Moths (family Saturniidae) are surely crowd-pleasers, in both larval and adult forms. I can’t say there are any I have no affinity for, but the luna moth is my favorite. They only fly as adults for about a week, having no feeding apparatus, with their singular purpose to mate and set in motion the next generation. This individual came in the summer of [a long time ago] when I saw six or seven luna moths. I don’t think I had seen a wild one before or since. Maybe this year.
On another note, being a bit of word person, I have long been curious as to the etymological origins of the genus name Actias. I haven’t searched in a while, but my previous efforts were fruitless. Any insight or knowledge into that mystery would be most welcome.