www.ukbutterflies.co.uk

This hot spell with gentle southeast winds should bring some immigrants.

LT Blue and Continental Swallowtail almost a certainty and maybe some other interesting species:
Scarce Tortoiseshell, Queen of Spain, Camberwell Beauty with an outside chance of Bath White, Pale (or Berger's) Clouded Yellow, Scarce Swallowtail, Map.

Any other thoughts?

Jack

That would be good to see... The winds need to go round rather more easterly for Camberwells, though. Most of the immigrants we get originate in Scandanavia I believe. The same for Scarce Tortoiseshell - they originated even further east.

It intrigues me that we don't get reports of Berger's CY and even Pale CY when there are good influxes of O
"ordinary" Clouded Yellows. All the books seem to say that in days of yore they turned up regularly (and they appear in collections). I don't think I've ever seen a report of one on here.

Dave

I guess a lot of it will depend on how these species are doing in their homelands