Phaedon amoraciae

This was quite early in my beetling days and these photos are all I've got to go on when reviewing the record. I would have used Mike Hackston's key to identify it. There was another one that I identified as amoraciae but I think that one was in fact cochleariae. Comparing the photos of the two beetles the other one had a trace of reddish on first two antennal segments which I cannot see on this one, even in the photos where it is upside down (Duff indicates that you need to look at the underside of the antennae which Hackston doesn't specify). Also I can hardly see any sign of humeral calli on the other one whereas I think I can make them out more easily on this one. So far as I can see the lines of punctures on the elytra are fully regular on this one which Hackston has as a character for amoraciae, whereas there does seem to be a bit of irregularity on the one I now think is cochleariae (not much, presumably why I missed it originally). Perhaps the most important character that helps me feel comfortable about retaining this record is that the pale on the tip to the apical sternite seems to extend well back along the sides of the sternite towards its base. I'm glad I took photos of it from underneath even though I wasn't able to get photos through the microscope back then.

Phaedon armoraciae, Great Ryburgh (Norfolk, UK), 12th May 2017