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Wednesday, 22 May 2019

Pachyrhabda steropodes.

I caught a few more of these today ( 22 May 2019 ) at Cwmllwyd and although my photos are quite pathetic compared to CM's excellent shot in his renowned book, I have no doubt remaining about the identity of these moths. Many thanks to Paul Parsons for pointing me in the right direction.



The two shots are of the same individual.


23 May 2019

7 comments:

  1. A brilliant find, Steve. 10/10! As you know, I`ve been looking at the distribution of this species (but not this year) and have found it from Abergwili nr Carmarthen to near Bethlehem in the Tywi Valley. Your discovery suggests that it is further up the Tywi (eg to Llandovery) and also around the N flank of Mynydd Du. I`d suggest that it`s looked for in the Llandeilo-Talley area if anyone is so minded.

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  2. Thanks Ian. In case it's of any use to others, the Cwmllwyd individuals were almost entirely restricted to Soft Shield Fern very close to one of our streams.

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  3. This is really excellent. Well done especially to Paul for working out the ID of the original moth, which looked far more metallic and greenish in the photos than I had anticipated for Pachyrhabda. The spread of this species in Carmarthenshire is being amazingly well documented, but I think we need to start 'thinking outside the box' and check ferns more distant from the Tywi Valley. I'll do Brechfa this weekend, if others can do the Teifi and the far north-east. I assume Ian would have found this species if it had reached Llanelli Borough. It would be very useful indeed to know the current limits of this invasive moth's range.

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  4. Remember Steve`s point that soft shield fern is the best fern to check, but I`ve had it on male fern too, but never broad buckler fern etc. Soft shield fern likes base-enriched conditions. Just gently tap the fern and they`ll fly a short distance.
    Yes...I`ve checked likely places around Llanelli, but no luck (yet!).

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  5. One final photo added above - at last I was able to capture the moth's wing markings.

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  6. Nice Steve. I have yet to see this moth, will it still be on the wing mid june?

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  7. Don't know the answer to that question, Paul. What I do know, however, is that without your much valued input the correct ID of these moths would have eluded me - most grateful.

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