Figure 2.

Dendrogram based on the cluster analysis of the cuticular compounds. Included are individual P. triangulum females (= Pt-F), P. triangulum males (= Pt-M), H. rutilans females (= Hr-F), A. mellifera workers (= Am-W), C. arenaria females (= Ca-F), and H. nobile females (= Hn-F). Numbers after the species label indicate the different individuals. Numbers in the dendrogram indicate the first 5 bifurcations (see text).