HR diagram of the UVES Li-members (red large dots), and HCMs (red triangles). All the “L08 mem” are marked with a green circle. The members targeted by GIRAFFE are shown as small blue dots. The dotted and solid black lines are the evolutionary tracks for 0.5, 1, and 2 M_⊙ and isochrones for 1, 5, 10, and 20 Myr, respectively. The ZAMS is marked with a solid red line. The evolutionary tracks, the isochrones and the ZAMS are from the stellar models of Siess et al. (2000) for a chemical composition with Z = 0.01.