Ṁ_acc vs. excess emission (in mag) in the four IRAC Spitzer bands and for the 24 μm MIPS band. The median excess emission and first quartiles are shown in each panel by the red (thick) horizontal lines; for comparison, we also plot the median Taurus class II SED (black (thin) line; D’Alessio et al. 2006). Symbols as in Fig. 7. (A color version of this figure is available in the online journal.)