Crickets with more hybrid background have intermediate morphological traits. The relationship between the hybrid index (an estimate of ancestry proportions, G. pennsylvanicus = 0 and G. firmus = 1) and A. Male pronotum width; B. Female pronotum width; C. Relative ovipositor length, and D. Male tegmina color.

 
 
  Part of: Byerly AR, Jenck C, Goetz ARB, Weissman DB, Gray DA, Ross CL, Maroja LS, Larson EL (2023) Geographic variation in phenotypic divergence between two hybridizing field cricket species. Journal of Orthoptera Research 32(2): 189-200. https://doi.org/10.3897/jor.32.90713