Number density evolution for ETGs in different mass ranges: red galaxies (red filled triangles for  = 1), spheroidals (dark magenta empty circles for  = 1 + 2.0) and low-SSFR (magenta filled circles for log(SSFR)  <  −1). Black filled squares refer to the global population. Lines have the same meaning as in Fig. 11. In the second panel, we also indicate by 2 arrows the evolutionary time sequence from quiescent to red to spheroidal galaxies (see text).