J − H vs. H − K diagrams for known members associated with the various subclusters obtained from the Maximum likelihood analysis (colored circles) and new members obtained from the Mahalanobis distance analysis (magenta pentagons). The number of sources with complete JHK photometry is indicated in the legend. Subclusters B and E include the new members with an intermediate probability of belonging to both subclusters. The MS and the giant branch are indicated by thin solid lines (Bessell & Brett 1988). The CTTS locus (Meyer et al. 1997) is indicated by a thick solid line. The theoretical tracks are corrected for extinction using the threshold A_V = 1 mag. A reddening vector for A_V = 3 mag is shown as a red arrow.