Yashca's picture

Odd butterfly

Observed: 10th August 2011 By: YashcaYashca’s reputation in InvertebratesYashca’s reputation in InvertebratesYashca’s reputation in InvertebratesYashca’s reputation in Invertebrates
Odd butterfly
Description:
Identifications
Species interactions

No interactions present.

Species with which Brown Argus (Aricia agestis) interacts

Comments

Martin Harvey's picture

unusual

This is an odd-looking form, with the white spot enclosing a block mark. It does look a bit like the the Scottish version of the Northern Brown Argus (which doesn't usually have black in the spot), but as far as I understand it the English version of the Northern Black Argus, which is presumably the more likely to be near to this location, has less orange on the wings. So I think it must be 'the' Brown Argus, but an odd form.

There is a very similar one on the UKbutterflies site:
http://www.ukbutterflies.co.uk/species.php?species=agestis#Aberrations

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Entomologist and biological recorder

Yashca's picture

Thanks!

You are right about it matching the aberration on the UKbutterflies site. A little further research led me to the Natural History Museum website, specifically this page:
http://www.nhm.ac.uk/research-curation/research/projects/cockayne/databa...

Which has a specimen that seems to match my butterfly, Aricia agestis ab. snelleni