FIGURE 3 in Quantitative analysis of the morphological variation within the tiger beetle Calomera littoralis (Fabricius, 1787) (Coleoptera: Cicindelidae) in Mongolia

FIGURE 3. Association between the variables of longitude and the proportion of each C. littoralis population that contains a black dorsum. Expected distribution of phenotypic variation under models of A) random association, B) two distinct subspecies with a contact zone, C) clinal variation. D) Observed data based on 494 specimens collected from 34 populations (R2 = 0.63, P<0.01).