Hi, I have a question pertaining to peculiar beetle from N Thailand. It`s looks like Derolus (additional carina on the lower parts of femurs are present) From N Thailand, Lamphun prov., Mae Tha env. ~13 mm
It is Derolus glauciapicalis Gressitt & Rondon, 1970, a species that I think is only known from Laos. It seems identical to the picture of the type I have under my eyes. Very nice beetle!