Appendix A. Figures showing a rotating, three-dimensional fragrance space of *Euglossa* spp. on Barro Colorado Island, Panama, and a full version of Fig. 4.

FIG. A1. Rotating, three-dimensional fragrance space of Euglossa spp. on BCI. The Multidimensional Scaling (MDS) plot is based on the same data and analysis as the two-dimensional representation in Fig. 2a, but allows one additional dimension and thus accommodates more of the variation in the underlying similarity matrix (Stress = 0.15). |

FIG. A2. An undivided version of Fig. 4: Presence of fragrance compounds in hind leg extracts of 15 sympatric species of |