Figure 3.

Discriminant analysis of the cuticular compounds. Included are individual P. triangulum females (yellow), P. triangulum males (blue), H. rutilans females (red), A. mellifera workers (black), C. arenaria females (turquoise), and H. nobile females (green): Representation of the six groups for five discriminant functions a: Discriminant functions (DF) 1 and 2; b: DF 3 and 4; c: DF 4 and 5. The analysis is based on 8 factors revealed by the principal component analysis.