Cite the experiments and tell us what new creature was developed.
Pay attention, I did cite the example. Just Google the Drosophila experiments. I am aware of at least two new species of fruit flies that have been created in the lab. Dr. William Rice and Dr. G.W. Salt bred created the Drosophila melanogaster strain and Dr. Diane Dodd was also able to show speciation by reproductive isolation in Drosophila pseudoobscura fruit flies. The proof that they are new species is that these new species are not able to breed with the original species.
There are numerous other examples of successful allopatric speciation in the lab. You can find examples of sympatric speciation in the literature as well.