About the Authors

Ben W. Price

Affiliation Life Sciences Department, Natural History Museum, London, England

Charles S. Henry

charles.henry@uconn.edu

Affiliation Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, Connecticut, United States of America

Andie C. Hall

Affiliation Core Research Laboratories, Natural History Museum, London, England

Atsushi Mochizuki

Affiliation National Institute for Agro-Environmental Sciences, Tsukuba City, Ibaraki, Japan

Peter Duelli

Affiliation WSL Swiss Federal Research Institute, Birmensdorf, Switzerland

Stephen J. Brooks

Affiliation Life Sciences Department, Natural History Museum, London, England

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: BWP CSH AM PD SJB. Performed the experiments: BWP ACH AM. Analyzed the data: BWP CSH ACH AM. Contributed reagents/materials/analysis tools: BWP CSH ACH AM PD SJB. Wrote the paper: BWP CSH ACH AM PD SJB. Identified specimens to species using song analysis: CSH. Designed COI primers: AM. Generated molecular data: ACH. Collected specimens: CSH AM PD SJB.