Aphis torquens Holman, 1959

on Petasites

parasite

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.

host plants

Asteraceae, monophagous

Petasites hybridus, kablikianus.

distribution within Europe

(PESI, 2018).

references

Blackman & Eastop (2019), Wojciechowski, Depa, Halgoš ao (2016a).