Figure 2 from: Griebenow ZH, Jones SC, Eaton TD (2017) Seeking quantitative morphological characters for species identification in soldiers of Puerto Rican Heterotermes (Dictyoptera, Blattaria, Termitoidae, Rhinotermitidae). ZooKeys 725: 17-29. https://doi.org/10.3897/zookeys.725.20010

Figure 2 Pronotal metrics: AA'= maximum length of pronotum; BB' = maximum width of pronotum; CC' = depth of anterior pronotal notch; DD' = depth of posterior pronotal notch. Parallels are marked in black.