Redshift distribution of Planck Early Release Compact Source Catalogue (ERCSC; Planck Collaboration VII 2011) galaxies detected at 545 GHz (Negrello et al. 2013, no more recent redshift distribution for a complete sample of Planck dusty galaxies is available). They are all local (z < 0.1). At fainter flux densities, strongly lensed galaxies at much higher redshifts (z ≳ 1) begin to appear, with nothing in between. The redshift distribution of known strongly lensed galaxies detected by Planck (Table 1) is shown here. The broad gap between the two populations persists at least down to a flux density of 100 mJy at 600 GHz (Negrello et al. 2017).