The lantern bug can grow from 1.5 to 3 inches long from head to thorax and has a wingspan of about 2 to 2.5 inches wide, depending on the species. The long "beak" called a rostrum is used to suck the juice out flowers and fruits. The lantern bug is an herbivore. Lantern bugs are called thus because of their bright usually contrasting colors. Their coloring varies for each genus but the colors are bright enough for them to earn their name, despite the fact that no lantern bug actually emits any light at all.
In the following two images, you can see something underneath it. I think it was laying it's eggs.