Figure 3 in Inconvenient hyperdiversity - the traditional concept of "PheIdole pallIdula" includes four cryptic species (Hymenoptera: Formicidae)

Figure 3. Hierarchical NC-Ward clustering of 72 nest samples of major workers of Pheidole balcanica sp.nov. and P. koshewnikovi after stepwise reduction to seven morphometric characters. The arrows indicate two samples of P. balcanica sp.nov. erroneously allocated to the P. koshewnikovi cluster. The misplacement was rectified by a wild-card run of a controlling linear discriminant function which agreed with non-hierarchical NC-K-means clustering by 100 %.