Paper wasp nests are often located on trees ... Wasps sport a variety of colors, including red, blue, green, and orange. The steel blue cricket hunter, for instance, is a blue solitary wasp ...

Paper Wasp Nests: These are umbrella-like structures ... but there have also been some that are blue-black in color. They build their nests in mud. Cicada killers are much larger than the other ...

Was that large, buzzing insect a wasp or a hornet ... black, or even blue. Nest types vary for both species. Hornets vs wasps ...