Butterflies of Beauty

On a mundane day, dreary with boring grey It is a butterfly fluttering by with instant effect Which transforms and adorns the scene with injection of stark beauty. Not flies, not lovers of butter, Who coined such a tasteless and unseemly name for these ugly ducking clothed swans? These ultimate squiggles and dabs of flagrant beauteous color and form Deserve a better name and signature on work of art wings One that heralds these insects instant effect on weather, mood, scene frames and vistas Any suggestions?