PeerJ Author 35 Points Contributions by role Preprint Author 35 Contributions by subject area Entomology Ivan N. Bolotov PeerJ Author Summary Biogeography Evolutionary Studies Molecular Biology Taxonomy Zoology Past or current institution affiliations Northern Caribbean University Websites ResearchGate Google Scholar PeerJ Contributions Preprints 1 December 1, 2017 - Version: 1 A possible bivoltine development of several bumblebee species in Europe Grigory Potapov, Yulia Kolosova, Ivan Bolotov https://doi.org/10.7287/peerj.preprints.3445v1