Top: comparison between the MIPS1 photometry obtained in this work and that published on Smith et al. (2011) for the common sources. Bottom: Spatial distribution of the sources with excess in this work (red dots, labelled as follows, A: 2MASS J17462472+0517213, B: HD 161733, C: HD 161621, D: TYC 428-1938-1, E: TYC 428-980-1, F: HD 161734) and in Smith et al. (2011) (blue squares). The areas limited by green lines indicate the coverage of the Spitzer program ID 3347 which was not included in Smith et al. (2011).