TY - RPRT TI - Evolution of leaf-cutter behavior in bees (Hymenoptera: Megachilidae) as inferred from total-evidence tip-dating analyses AU - Gonzalez Betancourt, V. H. AU - Gustafson, G. T. AU - Engel, M. S. PY - 2019 DO - 10.1101/543082 UR - https://www.biorxiv.org/content/10.1101/543082v1 ID - 10.1101/543082 ER -