About the Authors

Yunzhi Yao

Affiliations Key Laboratory of Insect Evolution and Environmental Changes, Capital Normal University, Beijing, China, State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS, Nanjing, China

Dong Ren

rendong@mail.cnu.edu.cn (DR); david.rider@ndsu.edu (DAR)

Affiliation Key Laboratory of Insect Evolution and Environmental Changes, Capital Normal University, Beijing, China

David A. Rider

rendong@mail.cnu.edu.cn (DR); david.rider@ndsu.edu (DAR)

Affiliation Department of Entomology, North Dakota State University, Fargo, North Dakota, United States of America

Wanzhi Cai

Affiliations Key Laboratory of Insect Evolution and Environmental Changes, Capital Normal University, Beijing, China, Department of Entomology, China Agricultural University, Yuanmingyuan West Road, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YY DR DAR WC. Performed the experiments: YY DAR. Analyzed the data: YY DR DAR. Contributed reagents/materials/analysis tools: DR DAR. Wrote the paper: YY DR DAR WC. Collected and identified specimens: DR DAR. Interpretation of specimens: YY. Provided geological data: YY DR. Carried out all analyses: YY DAR. Drew and prepared pictures: YY WC DAR.