2.16 μm (blue markers) and 22 μm (red markers) IR excesses defined as F_observed/F_CK vs. Hα EW (absolute value). We note that this IR excess indicator is a flux ratio and not the one described in Eq. (2) where we integrated under the SED. Dots are Herbig Ae/Be stars with M <  7 M_⊙ and triangles are Herbig Ae/Be stars with M >  7 M_⊙. Lines are linear fits to the data, dashed for HAeBes with M >  7 M_⊙ and in solid colours for HAeBes with M <  7 M_⊙; black solid lines are the linear fits for all the sources (equations and correlation coefficients for these fits to all the sources for all the IR bands can be seen in Table 3). We highlight the difference in the scale of the vertical axis between the two panels.