ID help with a grass moth please

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ID help with a grass moth please

Postby JohnD on Fri Aug 13, 2021 10:24 am

I've been trapping at a wet grassland site - lots of reed with some meadowsweet and next to a woodland. Caught this moth on 26-7-21. I think, looking at the characters on https://britishlepidoptera.weebly.com/a ... tella.html and on the 'Common Grass Moths of Berkshire' ID guide that this is Agriphila selasella rather than Agriphila tristella. The colour of the meadian streak of moth is white rather than yellow (though A. tristella has white forms), the median streak is not constricted at 1/3 or even 1/2, and breaks into two fingers rather than 4. If I'm understanding the texts correctly there is also no subterminal line. However, A.selasella is very 'local and scarce except Dee saltmarsh, where plentiful' according to the Cheshire moth atlas - so I'm wondering if I have misread the characters. Be very grateful for comments.

John
Attachments
possible Agriphila selasella 26-7-21 imago 1, image 6.JPG
Agriphila selasella or tristella?
JohnD
 
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Re: ID help with a grass moth please

Postby JulianB on Sun Aug 15, 2021 9:44 pm

You're looking good for selasella there John. Looking at the distribution in Cheshire it does sound abundant on the Dee Estuary but is also found in other locations across the county. It's hard to argue with your photo!
Regards, Julian
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Re: ID help with a grass moth please

Postby JohnD on Sun Aug 15, 2021 10:17 pm

Thanks Julian. I'm still very green at ID, so confirmation is very gratefully received.

John
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