With only one species in the west, this must be stebbinsi I'm guessing. I can't find any information for characters to separate it.

Generic characters.
- Soft recumbent hairs evenly spaced over almost entire specimen not visible in pictures.
- Pronotal ventral antennal recess open towards the rear.
- Antenna 9 segmented.
- 1st hind tarsomere as long or longer than 2nd.
- Metacoxal plate gradually narrowing laterally.
- Head with a median ocellus.
- Pronotum without a sublateral carinae.