Probably a good question. I have a copy of The Dynastine Scarab Beetles of the United States and Canada, the species are described, but it's
not a breeding guide. You might try searching for "Ratcliffe and Moro'n 2005 where the book says they described the larval stage of vogti.
sleeperi larva have been found in Cericidium floridum and mesquite, as well as Olneya tesota
Probably, in the desert, any rotted wood is going to be used by females to lay eggs.