Evolutionary tracks for 7 M_⊙ solar-metallicity models with different initial rotation rates: ω = 0.0,0.5,0.8 are drawn as solid blue, dashed green and dash-dotted red lines, respectively. The red and blue edges of the instability strip (IS) according to Bono et al. (2000b) are indicated by dashed lines. Grid points inside the IS are marked as solid circles. The Tammann et al. (2003) IS is shown as a shaded gray area.