Top left panel: WISE census of Class I and Class II protostar candidates, with shock emission indicated. Based on the selection criteria by Fischer et al. (2016). Top right panel: 2MASS census of YSO, CTTS, and HAeBe candidates. Based on the selection criteria by Xu et al. (2011). Center left panel: close-up on the box corresponding to group 2. Center rightpanel: transition disks, AGB star, star-forming galaxies emission, and PAH emission candidates, based on the selectioncriteria by Fischer et al. (2016); and Gaia point sources. Bottom panel: close-up on the box corresponding to group 1. On all panels, triangle-shaped markers correspond to well-detected point sources, and circle-shaped markers (labels marked with a “*”) correspond to point sources that were flagged for contamination by extended emission. Filled markers represent point sources that were detected both by 2MASS and WISE.