Hertzsprung-Russell diagram showing the log(T_eff) and log(L/L_⊙) values for our sample of δ Set, γDor and hybrid pulsators originally from Bowman et al. (2016) and Li et al. (2020). The colors and marker style indicate the variability class as listed by Bowman et al. (2016) and Li et al. (2020) based on an inspection of the frequencies in the amplitude spectrum. The hybrid stars of both catalogs have been merged as the catalogs do not indicate whether the hybrid stars are dominantly of the δ Set- or γDor-type. The black solid and dashed lines respectively indicate the δ Sct and γDor theoretical instability strips given by Dupret et al. (2005). The dotted lines are theoretical evolutionary tracks computed by Johnston et al. (2019) for stars between 1.2 M_⊙–2.4 M_⊙ and solar metallicity.