Yellowjackets have a lance-like stinger without barbs and can sting repeatedly whereas honey bees have a barbed stinger and sting only once. Some have yellow on the face. Mouthparts are well-developed for capturing and chewing insects with a tongue for sucking nectar, fruit and other juices. Nests are made from wood fiber chewed into a paper-like pulp. Life Cycle and Habits Yellowjackets are social wasps living in colonies containing workers, queens and males.
Colonies are annual with only inseminated queens overwintering.
Fertilized queens occur in protected places as hollow logs, in stumps, under bark, in leaf litter, in soil cavities and human-made structures. Queens emerge during the warm days of late April or early May, select a nest site and build a small paper nest in which eggs are laid. After eggs hatch from the 30 to 50 brood cells, the queen feeds the young larvae for about 18 to 20 days. Larvae pupate, emerging later as small, infertile females called workers. By mid-June, the first adult workers emerge and assume the tasks of nest expansion, foraging for food, care of the queen and larvae, and colony defense.