Estimated tree using data from Larkin et al., (2008)

Our estimated tree generated using data from Larkin et al., (2008). The tree is based on the mitochondrial genes (COI and COII including the intervening tRNA-leucine) and the nuclear gene (EF-1α) for 35 species of bees in the genus Andrena and one outgroup, Ancylandrena larreae. The accession numbers were taken from Larkin et al., (2006). The tree was estimated using BEAST v2.1.3 (Bouckaert et al., 2014) on the constrained topology from Larkin et al., (2008). We used a HKY + Γ model of nucleotide evolution, separate partitions for each gene, a relaxed log-normal clock, and a yule prior. Further information and full references can be found in the supplementary material of our paper.