Friday 23 August 2019

Argyresthia semitestacella?

Not a great photo, this one is at the edge of my camera's capabilities and my eyesight. Not sure even out of the pot I can get a much better photo but I'm hoping it's sufficiently distinctive to ID...it's been suggested that this is Argyresthia semitestacella.





Mark Griffiths, Garsinton, Oxford.
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3 comments:

  1. Dave Wilton23 August 2019 at 11:39

    Hi Mark,

    Even though those aren't the best of images I'd say that's almost certainly albistria. A.semitestacella is quite a bit larger than your specimen and only really likely to be found in/near beech woods.

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  2. Mark Griffiths23 August 2019 at 11:51

    thanks Dave!

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  3. Martin Townsend24 August 2019 at 07:23

    Without an accurate indication of size this is inconclusive. The white appears to be interrupted at about 3/5 and it appears to have quite a bit of white extending to the tornus but albistria can look like this if worn. However, semitestacella is not a rare moth so is quite possible. Size ranges of the two given in the micros guide are 4.5-5.5 and 6-7mm respectively and 0.5 mm is not an easy distance to measure on a live moth!

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