Finding and buying a culture is really the only way to begin culturing your own . Wild fruit flies do fly , D. Hydei & Melanogaster have been bred to be flightless therefore when you buy a starter culture that is your begining . The culture may cost $15.00 and freight will be $35.00 . As cosbyart wrote formulating your own culture feed can be quite reasonable , as long as you keep up with refreshing cultures every 4 to 5 weeks and don't let them expire . I purchase Rapashy Superfly 3 kg. / 6.6 lb. fruit fly food , that will last years for $50.00. Get this out of the way and get on to enjoying Your mantids ......... S