It is also found in the trichomes of stinging nettle ("Urtica dioica"). Urtica dioica is another common source. These cords are often associated with stems and rhizomes of the common nettle ("Urtica dioica"). Unlike other subspecies of "Urtica dioica", it is not associated with disturbed habitats. The folklore mainly relates to the stinging nettle ("Urtica dioica"). It is also found in "Chelidonium majus" and "Urtica dioica". "Urtica dioica" is a good source. They are also known to feed on "Urtica dioica" and "Malva" species. The larvae feed on "Urtica dioica", "Humulus lupulus" and "Parietaria". Its diet consists of "Urtica dioica" juices, "Heracleum sphondylium" nectar, and "Centaurea jacea" nectar. During summer, they hosts within "Humulus lupulus", "Humulus japonicus", and "Urtica dioica".