Fig. 2 | Distributionofbutterfliesovertime. Bioregionshadingindicatesthenumberofbutterflylineagesthatwereassociatedwiththatbioregionduringthattime period,asdeterminedby BioGeoBEARSancestralstatereconstruction.Eachmapcorrespondstoa 15-Maintervalofbutterfly evolution.Resultsarebasedon data fromthisstudy.