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and a bad view of the frons, maybe too grey for pluvialis ?
If I compare the first antennal segment with photos from internet I think it's pluvialis. subcylindrica, which is a potential candidat for my specimen, have this first antennal segment more regular, less misshapen.
https://www.flickr.com/photos/63075200@N07/49489140398/in/album-72157629590227141
I don't know !
Benoît