I've keyed this out in Arnett (1).

Photos show the various characters I was referred to along the way.
- 11 segmented antennae, last segment with a cone sense organ I think.
- Pronotum with no lateral bead, evenly rounded.
- Procoxae closed posteriorly.
- Claws appendiculate and separate.
- Hind tibia simple without indentations.
- Pygidium without any central groove.
- All femurs without protrusions or spines.
- Eye not emarginate, and not round.
- Anterior margin of proepisternum not arcuate (just behind eye).