Figure 11 in Geometric and traditional morphometrics for the assessment of character state identity: multivariate statistical analyses of character variation in the genus Arrenurus (Acari, Hydrachnidia, Arrenuridae)

Figure 11. Multivariate variation in the 13 interlandmark distances sampled from the dorsal view of the idiosoma (distance set 1). (A) scatter plot of canonical variate scores (root 1 vs. root 2); distances with highest standardized factors are illustrated for both axes. (B) overall pattern of similarity among 11 Megaluracarus species and two Dadayella species based on Mahalanobis distances computed from the canonical variate analysis. This UPGMA phenogram (unweighted-pair grouping method using averages) groups the 12 character states discovered in the distances from the idiosoma. Branches are labelled according to discrimination order defined by the canonical variates. Symbols in the plot and in the phenogram are as follows: open blue circles, Arrenurus (Dadayella) adrianae; open green rhombuses, Dadayella aztecus; open red squares, Arrenurus (Megaluracarus) anae; solid green triangles, Megaluracarus anitahoffmannae; open pink triangles, Megaluracarus catoi; solid black circles, Megaluracarus colitus; solid grey squares, Megaluracarus costeroae; blue asterisks, Megaluracarus maya; solid red rhombuses, Megaluracarus neoexpansus; purple plus signs, Megaluracarus olmeca; lilac endashes, Megaluracarus tabascoensis; horizontal blue lines, Megaluracarus urbanus; green hyphens, Megaluracarus zitavus.