I found some small black fruit fly like insects. They are around 1.5mm long. They make the Drosophila melanogaster look big (I am guessing that the common wild fruit flies in our house are D. melanogaster). I am trying to breed them. They are maybe the same size or a little smaller than the wingless Drosophila melanogaster when the culture is almost dead (I guess less food makes them smaller). When the fruit fly culture is just about done it makes tiny fruit flies. I raised wingless Drosophila melanogaster on apple and it made them a lot smaller than when they were raised on Josh's Frogs fruit fly media or Repashy's fruit fly media which is good, I mean my mantises ate the smaller fruit flies better.