Scatterplots of isosize against body ratios of 273 females of Tetrix bipunctata and kraussi, showing the position of intermediate specimens A isosize against ratio of hind wing length to mid-femur length, the best ratio for separation of morphs B isosize against ratio of hind wing length to tegmen length, the standard ratio for discrimination (see Fig. 4). The 11 specimens considered by Nadig (1991) as “Zwischenformen” marked by black triangles.

 
 
  Part of: Moser V, Baur H, Lehmann AW, Lehmann GUC (2021) Two species? – Limits of the species concepts in the pygmy grasshoppers of the Tetrix bipunctata complex (Orthoptera, Tetrigidae). ZooKeys 1043: 33-59. https://doi.org/10.3897/zookeys.1043.68316