Long Sleeve Long Sequin Butterfly Prom Dress 12024 468: Gluehbirne Thomas A. Edison, 1903 Light bulb Nov 27, 2004. Beautiful 3 D butterflies make this long sequin prom dress a beautiful sight for your formal event. If you love butterflies, you'll love this long sequin formal dress that has multi colored butterflies from the v neck bodice to the floor. From Primavera, this long designer dress includes long puff sleeves and a beaded waist that tops the fully lined skirt that has a sheer sequined butterfly overlay that flows to the floor in an a line shape. The incredible long butterfly evening gown includes a deep v back that provides a sexy vibe with every turn at prom, galas, and other formal events. Offered in misses and some plus sizes, this long sequin butterfly prom dress is a whimsical style that is truly spectacular.