1. ETH Zürich; Institute of Integrative Biology (IBZ); Universitätsstrasse 16 CH-8092 Zürich Switzerland
2. Ecology and Evolutionary Biology; Yale University; 300 Heffernan Drive West Haven CT 06516 USA
3. Division of Entomology; Sher-e-Kashmir University of Agricultural Sciences and Technology; Chatha Jammu (J&K) 180009 India
4. Key Laboratory of Pollinating Insect Biology of the Ministry of Agriculture; Chinese Academy of Agricultural Science; Institute of Apicultural Research; Xiangshan Beijing 100093 China