very interested in this...
I know there have been at least three species introduced to California as part of a pest management program, Onitis alexis, Onthophagus taurus, and Onthophagus gazella, but I will have to create accomodations for them prior to actually collecting them. I have found a couple of these species in a ranch some 50 minutes from where I live, and have gotten permission to collect, it's just a matter of committing.
Has anybody kept these particular species and do you know of any other special requirements for them to thrive?