Busy Bees Use Flower Petals For Nest Wallpaper

[china_kitty]

I was visiting one of my favorite crafting blogs and they featured this unusual looking cocoon in one of their entries:



And they even included the post about it as well:
Scientists have just discovered a rare bee that uses flower petals for nest building

I've heard of leaf-cutter bees, but never one that uses flower petals for their nests.