How are dubia roaches different from a typical roach?

[trickyspark]

I guess the title says it all.

How are dubia roaches different from a typical roach? As in a roach you might find in a shed, woodpile, etc.

Mind you I am not feeding, nor attempting to feed my dragon a wild caught insect of any kind. I just wondered if there was really a difference.

 

[Taterbug]

They are in a different genus than American Cockroaches, not sure what that means in bugs exactly though. Dubia are tropical, and they have specific environmental needs. They prefer more heat and humidity than the average home, for example. In most homes they tend to die from exposure or moulting problems if they escape.
The adult males look similar to American Cockroaches, but the nymphs look much different.