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(Drosophila hasn't been sunk, but D. melanogaster probably belongs
to Sophophora instead. A petition to make D. melanogaster the type
Specifically, *Drosophila* is a multiply paraphyletic genus with about
1,450 species, and *D. melanogaster* lies very far away from the type
species. It's not even in the subgenus *Drosophila (Drosophila)*; it's
the type species of the very distant subgenus *Drosophila (Sophophora)*.
People want to split the paraphyletic *Drosophila*, but they also want
to keep *D. (S.) melanogaster* as a member of *D.*, so a petition was
made to make it the type species of *D.*, which would rename *D. (S.)*
into *D. (D.)* and would necessitate a new name for the current *D.
(D.)*. The ICZN rejected this petition, so if *D.* is split now, we get
From a nomenclatorial point of view, I think I understand why the
petition was rejected -- all that subgenus reshuffling is a bit much.
From a practical point of view, however, the decision was on the stupid
side of things.
(BTW, there are several insect genera with up to 2,000 species that no
entomologist seems to complain about because they are, apparently,
monophyletic unlike *Drosophila*.)