I have no idea about this beetle. Collected with a Malaise trap in Uganda. Small, around 12-14 mm to my memory (I can tell exactly on Tuesday, if this is important), sparsely covered with white scales.
Thank you for the hint, Gerard. I'll look in the direction you advised.
In fact the beetle is in good condition. It just does not have more scales
I did not check the whole material from the traps yet, so I cannot say whether I have other specimens. As always some species are abundant and some are in number 1 or 2 in traps. I'll place the photos of the most interesting ones here.