One of my friends said that his Macropanesthia rhinoceros ate up a moth pupa several days ago. I also read some articles on the Internet which said that cockroaches can control bedbugs by eating them. So I wonder whether cockroaches have hunting behavior or not. Or is that just because the Macropanesthia rhinoceros considered the moth pupa as a dead insect and the cockroaches can't hunt bedbugs but just eat up the dead bedbugs?