hello; There exist genetically altered flies that have been raised without functioning wings since before 1968. Back then some drosophila melanogaster flies (fruit flies) were exposed to radiation. Their offspring had vestigial wings and this genetic modification was then passed on to future offspring. I did a term paper on them along with raising a few thousand of them.
They can be purchased from several scientific supply companies. I do not have any now but over the decades have kept them at my homes and have fed them to my fish . They have little stubby wings so do not fly. Makes them a great live food for top water feeders such a s a betta. Easy to raise.
Have to be a little careful now days as there are now a few flightless strains of these flies. Some are not so hardy. I may be out of touch but think the ones I like are called vestigial winged drosophila melanogaster. ( vestigial winged fruit flies).
If still in business they should still be available from Carolina Biological Supply.
