Figure 2

Thirteen elements measured in the black and orange regions of the elytra with variance (σ²) of concentrations > 1; elements shown in order of decreasing variance. The small panel depicts elements with relatively lower variances in their concentrations: the respective variances for As, Zr and Hf measured in the black regions were 0.052, 0.019 and 0.006, while that for Al measured in the orange regions was 0.09. The variance in concentration of all the other elements listed in Table 1 in both these elytral regions was always ≤ 0.69.