[Taxacom] Lupuli radicibus

[John Grehan]

I would be most grateful if anyone can clarify the term 'Lupuli radicibus'.
This name was given by Linnaeus 1758 following his naming a new moth
species. The nearest I can find so far is Lupuli flos referring to a herbal
substance for hops Humulus lupulus. I was wondering if Linneaus was
referring to this plant (as a host plant, which is known for the species in
question).

Thanks,

John G rehan