Figure 4 from: Wallin H, Kvamme T, Bergsten J (2017) To be or not to be a subspecies: description of Saperda populnea lapponica ssp. n. (Coleoptera, Cerambycidae) developing in downy willow (Salix lapponum L.). ZooKeys 691: 103-148. https://doi.org/10.3897/zookeys.691.12880

Figure 4 - Body lengths of males and females of Saperda populnea populnea (Linnaeus, 1758) and S. populnea lapponica ssp. n. Y-axis in mm. *=significant according to a non-parametric Wilcoxon rank sum test.