Principal coordinate analysis of beta diversity estimates for whole microbial communities of the 30 specimens analyzed (individual circles) based on binary Jaccard (a, b) and unweighted unifrac distances (c, d) for V12 (a, c) and V34 (b, d).

<p>Lines connect circles with the species centroid; species are colour-coded (see Legend). Despite few discrepancies between libraries, all plots illustrate two main clusters: the member of the tribe Tropheini, <i>Astbur</i> (in red), and the Perissodini species (<i>Haptri</i>, <i>Hapmic</i>, <i>Permic</i>, <i>Perecc</i> and <i>Plestr</i>), which largely superimpose in their microbiota space. The laboratory species <i>AstburLAB</i> carries a remarkably distinct microbiota from its wild conspecifics (<i>Astbur</i>).