Utah State University Extension
Social wasps, including yellowjackets, hornets and paper wasps, are common stinging insects in Utah (Figs. 1, 2). The wasps are related to ants and bees, which are also capable of stinging; however, yellowjackets are the most likely to sting.
Hodgson, Erin and Roe, Alan, "Yellowjackets, Hornets, and Paper Wasps" (2007). All Current Publications. Paper 993.