FIGURE 3 in On the taxonomic status of Cicada orni Linnaeus (Hemiptera, Cicadidae) from Lesbos island in Greece

FIGURE 3. Bidimensional diagrams of relationships between specimens of C. orni L. (103 OTUs) of a principal component analysis based on a correlation matrix between 13 acoustic variables (standardized data). The first and second axes explain 42.3% and 22.6% of the total variation, respectively.