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Lots of these, this morning, on Cow Parsley by the Pocklington Canal...I shall post a picture.
My Flickr photos...
Out of interest, how does one differentiate this from B. anglicus?
My picture from this morning.
anglicus has the vein r-m slightly longer than the base of vein R4+5, which is very different to hortulanus. You can see the very short cross vein r-m of hortulanus on my pictures. It is not clear on yours, but the whole appearance of yours and the time of year are right for hortulanus. hortulanus can be quite a lot bigger, too.
Lat/Lng: 52.6113, 1.4523
OS grid ref: TG338070