Fig. 4

Bacterial microbiota in feces of the red dragonfly (Sympetrum frequens) at the phylum, family, and genus levels. Each taxon name with the existing ratio more than 1% was indicated in this figure. Bacteria species name reported as endosymbionts of aphids was described with red letter. Note that the feces from 30 to 50 dragonfly individuals were mixed to collect sufficient amounts, so the result shows averaged bacterial microbiota of multiple individuals (percentage of each taxonomic group represents an average in bacterial flora of multiple dragonflies)