kaleidoscope

1. (figuratively) A constantly changing series of colours or other things.Examples: "[T]his rainbow look'd like hope— / Quite a celestial kaleidoscope."; "Lady Etheringhame being now a constitutionalist, dined rather early: and Emily, her head like a kaleidescope, full of colours, with not a little disdain, put on the blue silk she had thought bleu céleste, at least in the country."; "The rail journey from The Hook [i.e., the Hook of Holland] to Basle is a scenic kaleidoscope, ranging from the flat terrain of the Netherlands to the high ranges of the Black Forest, from the straight Dutch waterways to the sinuous Rhine gorge, from the ocean-going shipping of canals to the busy inland traffic of the Rhine and from peaceful farmland to thriving centres of commerce."figuratively

2. (collective) A swarm of butterflies.collective