Figure 4 from: Guan K, Su J, Wang J, Yang Y (2015) Significance of hind wing morphology in distinguishing genera and species of cantharid beetles with a geometric morphometric analysis. ZooKeys 502: 11-25. https://doi.org/10.3897/zookeys.502.9191

Figure 4 - Shape variables of the hind wings in the Prothemus species. A principal component analysis (PCA) of hind wing configuration. Plot of PC1 (38.40% of total variation) and PC2 (15.88% variation) showing 90% confidence ellipses of population means B canonical variate analysis (CVA) of same matrix, also showing 90% confidence ellipses of population means. The averaged shape of each species is depicted as deformations using thin plate splines.