What is "synoeca"

Synoeca is a genus of eusocial paper wasps found in the Americas. Commonly known as warrior wasps or drumming wasps, these insects are known for aggressive behavior, a threat display consisting of multiple insects guarding a nest beating their wings in a synchronized fashion, and an extremely painful sting. Synoeca is one of only four insect types (the others being the bullet ant, Japanese giant hornet and the tarantula hawk) to receive a rating of 4 or higher on insect sting pain indices on the Schmidt sting pain index.