An example of the bare ground surfaces where emergence holes were observed on a study site in Corvallis, OR. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases ...

A tell-tale sign of ground bees is anthill-like nests popping up across your lawn. Their nests look like small mounds of soil with a single pencil-size hole at the top. Since they are solitary and ...