Top and middle panels: spatial distribution along the line-of-sight of the new disk-bearing YSOs and previously known members (pkm) in Lupus or UCL, for three age groups (less than 4 Myr, between 4 Myr and 12 Myr, and greater than 12 Myr). Seven Lupus clouds are represented schematically by the filled colored ellipses. The 4 Myr travel radii is represented by dotted ellipses, centered on each cloud and is shown in the left columns; the middle columns show the same but for 12 Myr travel radii. Bottom panels: spatial distribution of new Lupus or UCL YSOs, and previous known members, superimposed on the PlanckA_v map (the colorscale is the same as that shown in Fig. 1). The shaded red circles represent the 4 Myr and 12 Myr travel radii, for the left and middle panels, respectively.