Euura destricta

Euura destricta

Observation - Euura destricta - UK and Ireland. Description: The name of this delightful, very rarely-recorded Sawfly has changed. I had just mastered the old na

The name of this delightful, very rarely-recorded Sawfly has changed. I had just mastered the old name, sufficient to drop it into conversation. Not now!
Whilst it may be recorded on two other willows, I see it as a specialist of Salix pentandra which I have studied closely. There are not many pictures of the larvae or adults or even the leaf folds on the web but a glance here http://bladmineerders.nl/parasites/animalia/arthropoda/insecta/hymenoptera/symphyta/tenthredinidae/euura/euura-destricta/ will show that my records have been well received.
It is still a bit of a mystery and when I first recorded it here, as far north as Orkney, it was only the second UK record https://www.gbif.org/species/8660116 3 of the 8 are mine in GBIF which now show NO mainland Europe records
But I now have 18 records as I cannot find the Salix without the fly 'gall'
whilst tiny it is lovely to study; I have not yet seen the process which folds the leaf, nor egg laying. But under fold, which is really difficult to open, are signs of Spot-feeding. The larvae in early June are only 2mm long. I have tried breeding through but this has failed three season in a row - I will not try again.
I fret about the new name - see Comments.