This one did not last long very painful bite get a lot of these were I live.They are rather clever as you don't hear them,only feel the bite.
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I've agreed, as some of the features for a female pluvialis seem to be there, but it is difficult to be absolutely certain it is not H. crassicornis from the photo.
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Lat/Lng: 55.05876, -2.23433
OS grid ref: NY851738