==References====External links==* Yellowjacket fact sheet at Ohio State University* Differences between Yellowjackets and Hornets* Photographs of Yellowjackets (and other insects) in flight* Yellowjackets - Center for Invasive Species Research
* Ohio State University Yellowjacket fact sheet* Differences between Yellowjackets and Hornets* Stunning photographs of Yellowjackets (and other insects) in flight* To Deal With A Wasps' Nest Ken Chadwick B.A.