Oh, I guess I forgot one.

"flightless" Drosophila melanogaster : These have wings but it's unclear to me what the alleles actually are for the different cultures that are in the hobby. More than one allele is probably present in the hobby. As several different alleles could cause loss of flight with wing retention, each fly culture would need to be examined to guess.


One final point: fruit flies with wings have more surface area so they will carry more calcium/vitamins when dusting for feeding.