Basal portion of the right hind wing and its axillary sclerites. Six characters were obtained based on the study of sclerite 1 of the distal median plate (characters 21–26), which was the only one to show useful variation through the studied specimens. By using these sclerites and veins as ‘markers’, we established all other units of comparison. These veins (and their branches) are named according to a system devised by John Comstock and George Needham: the Comstock–Needham system. Abbreviations: dmp, sclerite 1 of the distal median plate; hup, humeral plate. Veins: A1, anal 1; A2, anal 2; A3, anal 3; C + Sc, costa + subcosta; Cu, cubitus; M1 + 2, media 1 + media 2; R, radius.

 
 
  Part of: Ribeiro JRI, Ferrari A (2023) Phylogenetic analysis of the Belostoma plebejum group sensu Nieser (Insecta, Hemiptera, Belostomatidae): the effect of adding continuous characters on its accuracy. Arthropod Systematics & Phylogeny 81: 1-34. https://doi.org/10.3897/asp.81.e87378