Connectivity of flare loops. Panels a, b: flare ribbons in 1600 Å during the rope-buildup and rope-erosion stage, respectively. Panel a is superimposed by contours of a line-of-sight magnetogram at the levels of ±100 G in red (positive polarity) and cyan (negative polarity). In panel b straight ribbons are marked by blue crosses and hooked ribbons by red squares. These symbols are replotted in panels d–f. Panel c: 131 Å image taken at the same time as panel a. Panels d–f: AIA 131, 94, and 171 Å image, respectively, taken at successively later times. Post-flare loops of cooler temperatures dominate at later times, but their connectivities with respect to the hooked and straight flare ribbons are consistent with each other.