The large, aggressive Southern Yellowjacket dominates its own territory and takes over ones it likes better, even from people.
Notorious for its aggressive nature and tendency to sting, Southern Yellowjackets are best given wide berth and left alone. They guard nests with ferocity. They can, and do, sting multiple times without dying. Because nests are in or near the ground, stinging incidents commonly result from unknowingly stepping on or near nests. Alarm pheromones are sent through the air and nests are emptied in response to a perceived threat outside of it. If a nest or colony is found in areas where people pass like a backyard, park, trail, or building, professional exterminators should be employed to remove them. Attempting to remove a Southern Yellowjacket nest without the proper protection and equipment could be quite painful for anyone in the vicinity.
One queen establishes a colony in the spring. She emerges from overwintering and either builds a burrow in the ground, moves into established hollows or building cracks, or she enters the nest of a weaker Yellowjacket species, killing its queen and commandeering the workers on her behalf. After feeding on insects and carrion, she lays eggs that will become workers for her. Nests are expanded by these workers using saliva and vegetation, and many combs are built into the colony in a short time. The queen focuses solely on laying eggs. Active during the summer, most Yellowjacket nests see a decline in numbers and activity by the Thanksgiving holiday when cooler weather sets in. All individuals in the nest die in winter except for the queen, who is inseminated before autumn is over in preparation for the next year. Some warmer areas of Florida see activity year round.
Scientific Name: Vespula squamosa
Bee, Ant, Wasp and Similar
Size (Adult; Length): 9mm to 16mm (0.35in to 0.62in)
Note: An insect's reach is not limited by lines drawn on a map and therefore species may appear in areas, regions and/or states beyond those listed above as they are driven by environmental factors (such as climate change), available food supplies and mating patterns. Grayed-out selections indicate that the subject in question has not been reported in that particular territory. U.S. states and Canadian provinces / territories are clickable to their respective bug listings.
Ant, Bee, and Wasp Anatomy
Antennae: Ants and Bees both have a pair of antennae on the head that senses their surroundings.
Head: The head contains the insect's compound eyes, antennae, and mandibles.
Thorax: Contains various vital parts such as the aorta and nervous system.
Abdomen: Contains various organs including the heart, gut, venom glands, and anus.
Legs: Ants and Bees have three pairs of legs attached to the thorax (center-body section).
NOTE: Ants, Bees and Wasps are part of the Hymenoptera order because they share many similarities.