Cluster candidate verification plots for a known recovered cluster (G3CC 8; Morales et al. 2013, left) and for a new candidate (right). The titles list the derived cluster parameters (see Sects. 2.3 and 3 for more details). Panels: Top left – Mid-IR CMD; red dots are all sources within the cluster radius and black dots are all sources in the sky annulus. Top right – Map of GLIMPSE sources with colors in the bin 0.6 mag≤[3.6]−[4.5]≤4.0 mag, color-coded by [3.6]−[4.5]. The red circle shows the cluster region and the black rings the sky annulus. Middle left – Combined near/mid-IR CMD; the dots are coded lines in the panel above. Middle right – Map of GLIMPSE-2MASS sources. Black dots represent all sources, while larger dots color-coded by [K]−[3.6] are the objects with 0.6 mag≤[3.6]−[4.5]≤4.0 mag. Bottom left – Mid-IR [3.6]−[4.5] color histogram for sources in the cluster region (black) and sources in the background annulus (red). The potential cluster members cause the excess at 0.6 mag≤[3.6]−[4.5]≤4.0 mag. Bottom right – Near/mid-IR K-[3.6] color histogram. The notation is the same as on the previous histogram. Vertical dashed blue lines at K−[4.5]=1.0 mag and 4.0 mag were added only to guide the eye. The potential cluster members cause the excess at K−[4.5]≥1.0 mag.