Maxillary Palpae.

I have 3 from the same region (1:Elytra all brown with dark edges. 2:Elytra all black. 3:Elytra brown center with large dark edges and central edges).

Head:
Eyes not emarginate.
Maxillary palpi truncate, not pointed.
Gradual reduction of neck immediately behind the eyes.
2nd antennal segment as long as wide.

Procoxa:
Open behind, not meeting with procoxal process which narrows to nothing.
The external shape of the opening is angular pointing to the side.