I would take Jerry's post with a grain of salt. :wink:
We've worked with a few colonies of the Flightless House Flies, and they can be cultured easily and with little or no smell and without risk of "transmitting human diseases". Unfortunately, the colonies that we received were not 100% flightless and therefore were disposed of after several generations. My hat's off to the folks at AZDR for getting a truly flightless line to the hobby - we need it.