Figure 12
From: Genetics and geometry of canalization and developmental stability in Drosophila subobscura
Left wing of Drosophila subobscura The image shows the thirteen landmarks (1 – 13) used in this work. I – VI longitudinal veins; cv-a and cv-p anterior and posterior crossveins; Co costal or marginal veins; L1 and L2 lengths of the proximal (Euclidian distance between landmarks 9 and 13) and distal (Euclidian distance between landmarks 13 and 5) segments of longitudinal vein IV, respectively. Wing shape index 
has been previously used to study shape clines in this species [30].