Aphis torquens Holman, 1959
Apterae in spring 2-3 mm (1-2 mm in summer), dark brown to blue-black. On undersides of young leaves, which are strongly curled and crumpled; attended by ants.
Petasites hybridus, kablikianus.
distribution within Europe
Blackman & Eastop (2019), Wojciechowski, Depa, Halgoš ao (2016a).