Cordulegastroidea

Bybee, Seth M., Kalkman, Vincent J., Erickson, Robert J., Frandsen, Paul B., Breinholt, Jesse W., Suvorov, Anton, Dijkstra, Klaas-Douwe B., Cordero-Rivera, Adolfo, Skevington, Jeffrey H., Abbott, John C., Herrera, Melissa Sanchez, Lemmon, Alan R., Lemmon, Emily Moriarty & Ware, Jessica L., 2021, Phylogeny and classification of Odonata using targeted genomics, Molecular Phylogenetics and Evolution 160, pp. 107115-107115 : 12

4.1.11. Cordulegastroidea

(BS = 100, PP = 1, QS = 1/NA/0.99)

Chorogomphidae + Neopetaliidae + Cordulegastridae are recovered as monophyletic with high support. This relationship has been found in previous studies but with different arrangements of the three families (e. g., Carle et al., 2015; Letsch et al., 2016 ab). We recover Chorogomphidae ( Neopetaliidae + Cordulegastridae ) with full support. Although the adults look superficially different among the families, the nymphs are quite similar and share several characters that unite this group, including the shape and dentition of the labial mask. Further, members of the group tend to inhabit streams as both adults and nymphs, but their preferred oviposition habitat is not well defined, with Neopetaliidae nymphs having been found in both muddy seeps and shallow clear streams (personal observation Bybee). Chlorogomphids may spend much of their time in the canopies, and approach streams largely to oviposit and seek a mate (personal observation A. Cordero).