Ergaula: capucina or pilosa?

[Gromphadorhini]

I have been given several individuals of Ergaula, but they are unmarked. Do you think this is E. capucina or E. pilosa? The male size is about 30 mm (or less).

And another question that worries me is: can these two species interbreed?

 

[Hisserdude]

I'm inclined to say E.capucina, maybe the more recently imported strain, but I'm not sure... @Allpet Roaches what do you think? 

And yeah, I think it's at least possible that capucina and pilosa could interbreed...

 

[Allpet Roaches]

I would guess capucina.

 

[Gromphadorhini]

Thanks friends!