Help with Blue from Aston Rowant

Discussion forum for getting a butterfly identified.
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Nigel
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Joined: Tue Aug 28, 2007 7:38 pm
Location: Leicestershire
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Help with Blue from Aston Rowant

Post by Nigel »

A visit to Aston Rowant in dull conditions produced a few SS Skippers as well as a few Blues.

I am stuggling to decide exactly which this is
and any help would be greatly recieved
Thank you.
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CB or BA - J4F1373.jpg
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David M
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Joined: Tue Aug 11, 2009 8:17 pm
Location: South Wales

Re: Help with Blue from Aston Rowant

Post by David M »

Lack of any blue dusting suggests Brown Argus.
Gibster
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Re: Help with Blue from Aston Rowant

Post by Gibster »

Yes it's a Brown Argus.

A surefire way to tell Brown Argus from the other blues is to check the underside of the hindwing - which is very nicely portrayed in your picture. Starting at the body and working towards the rear of the wing, the top edge has a single isolated black spot followed by a pair of black spots. This pair of spots are positioned so that one is above the other, which is unique in British blues. The others have these spots positioned sideways to each other.

Hope that makes it easier? :)

Cheers,

Gibster.
Raising £10,000 for Butterfly Conservation by WALKING 1200 miles from Land's End to John O'Groats!!!
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Nigel
Posts: 66
Joined: Tue Aug 28, 2007 7:38 pm
Location: Leicestershire
Contact:

Re: Help with Blue from Aston Rowant

Post by Nigel »

Great
Thanks for your help
Nigel
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