Hmmm - just from the markings, I'd go for P. flavicincta
(more-evenly mottled than P. lichenea, and with indistinct stigmata)
I hesitated over flavicincta and lichenea. You may be right, but I did not feel that the orange flecks were quite right for flavicincta. Waring and Townsend say: yellowish-marked forms occur in Devon.... Perhaps we need a third opinion!
...Oh no - that's like locating yourself on a map by taking back-bearings - you get a perfect intersection with two bearings (of course), but take a third and you get a whacking great triangle
The Cornwall Moth Group have both species:
- P. flavicincta - http://www.cornwallmothgroup.org.uk/gallery/gallery-species.php?species=2252
Those photos still lean me towards P. flavicincta.
The Group uses Yahoo Groups for discussion; one might cross-post this question there to get that 3rd opinion, perhaps (but I am not a member).
I'm not a member of the Yahoo group either. It certainly does look more like the Cornish flavicincta.. I used to see this species regularly in Reading and Cambridge, but never do in Bournemouth.
Many thanks to everyone who has popped in on this one. I think we are all in agreement with a Polymixis species, and as we are saying which one. I know the area where this was found and like most areas in Plymouth we have vast amounts of ragwort and valerian, the stated foodplants of some Rununuclus species. Unfortunately I haven't seen it in the flesh so to speak, it was a photograph my friend sent me for use on my website. Looked through my books but no joy. Must get a decent moth book. Going along the foodplant track flavicincta looks to be the favourite, I know he has loads of red valerian in his garden.