Acyrthosiphon calvulus (Ossiannilsson, 1958)

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) .