Acyrthosiphon calvulus (Ossiannilsson, 1958)on Pedicularis, Salix
hostplants
on Pedicularis, Salix
hostplants
Orobanchaceae, Salicaceae, polyphagous
Salix polaris; Pedicularis hirsuta.
The two hostplants are widely separated taxonomically, but very close ecologically:
the Pedicularis is parasitising on the dwarf willow.
references
Hodkinson, Bird, Cooper & Coulson (2004a) .