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[0153] Cauchas fibulella | by Bennyboymothman
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[0153] Cauchas fibulella

Adela (Cauchas) fibulella - 13th County Record

At Hexton the other day I was very lucky to find quite a scarce moth for Hertfordshire.

Adela (Cauchas) fibulella is a moth of the Adelidae family and is pretty minute to say the least. It is probably one of the least commonest from the family.

The moth feeds on Germander Speedwell which in itself is a common weed in most places. The first moth I observed was flying gently above its food plant settling intermittently during warm sunny spells.

I didn't just find one, once you got your eye in there were quite a few around the bottom end of the reserve but upon walking into the adjacent set-aside field I found even more Germander Speedwell and it was more common here with a count of 25 in total, a fantastic result!


Other moths of note included a few more Small Purple-barred (an even scarcer moth),15+ Glyphipterix simpliciella's, 5 Pyrausta nigrata, 8 Burnet Companions, 2 Mother Shiptons, 1 Grapholita compositella, 1 Grass Rivulet.

Other expected moths that I disturbed during the day are below


1x Silver-ground Carpet

10+ Celypha lacunana

5x Anthophila fabriciana

1x Silver-Y

1x Marbled White Spot

1x Green Carpet

1x Grey Pug

1x Epiblema sp

1x Psyche casta


Needless to say after finding the moth in profusion at Hexton, I will be searching elsewhere for other large patches of the foodplant.

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Taken on May 27, 2015