Size: 3/8 inch to 5/8 inch
Color: Black and Yellow
Yellowjackets are social insects that consists of a queen, workers (females), and males (used for mating). A colony of yellowjackets can have more than 1,000 workers. Preferably, yellowjackets make a nest in the ground such as in rodent burrows but they will attach their nest to shrubs, houses, bushes, garages and sheds. Yellowjackets are beneficial insects because they eat other bothersome bugs such as flies and beetles. They also like to eat meat and sugary foods so during picnics and barbecues, they are seen flying around. Even open garbage dumpsters can attract yellowjackets. The danger of yellowjackets is their stingers. Yellowjackets are very aggressive and will sting multiple times if threatened or when their nest is disturbed. If you see a yellowjacket flying, that means their is a nest nearby. The pictures below is the nest of yellowjackets:
Size: Adults are about 1 inch long
Color: Color varies with species. Most are brownish with yellow markings and some are yellow and black.
There are 22 species of Paper Wasps throughout the U.S. Paper wasps are semi social insects. The colony consists of a queen, female wasps, and males that are used for mating. There are no workers. Queen Paper Wasps will look for a place to shelter for the winter and will emerge in the spring to find a place to make a nest. Paper wasps can make their nest hanging upside down from tree branches, shrubs, and twigs but preferably, paper wasps like to make their nest in sheltered areas such as attics, porch ceilings, etc. The nest resembles an umbrella naming them "umbrella wasps." Paper wasps like to eat nectar, caterpillars, spiders and other insects making them beneficial insects.
The danger of Paper Wasps is the stinger. Paper Wasps are not aggressive but they will attack if they are threatened or if the nest is disturbed. Paper Wasps' stingers are painful and can cause allergic reactions. The pictures below shows the nest of paper wasp: