Top panel: number of LPVs reported in the OGLE-III catalogue towards the LMC and SMC as a function of OGLE I-band variability amplitude. The number of sources are given per 0.1-width bins of log amplitude. The group classified as Miras in the OGLE catalogue is shown as red pluses connected with a red dashed line, and the group combining all other LPVs is shown as blue crosses connected with a blue dashed line. The combined group of all LPVs is shown as black filled circles connected with a solid line. Bottom panel: Gaia recovery fraction of OGLE-III LPVs as a function of OGLE-III I-band variability amplitude for the group of LPVs shown in the top panel. The recovery fraction is computed per log amplitude bin as the ratio of the number of OGLE-III crossmatches in Gaia DR2 to the number of OGLE-III LPVs in the considered amplitude bin. Marker and line properties for each of the three groups are identical to those used in the top panel.