[Syrphidae] Re: Why repeat a genus name as a subgenus?

ximo mengual sanchis xmengual at gmail.com
Sat Feb 8 09:22:50 GMT 2020

Hi Bastiaan,

This is merely a convention. If you have a subgenus name that differs from
the genus name, automatically you have a subgenus sensu stricto.

If you divide an orange into two pieces of different size, there will be a
smaller piece and (by default) a larger one.

Thus, as soon as you include some species in the subgenus X, you create
automatically the subgenus sensu stricto with the rest of species. The only
way to formally write this subgenus sensu stricto is writing two times the
same name, i.e., Sphaerophoria (Sphaerophoria) = Sphaerophoria sensu



El vie., 7 feb. 2020 22:24, Bastiaan <bwakkie at syrphidae.com> escribió:

> Hi all,
> Can someone explain to me why we use the following form for subgenus as
> if the subgenus is published the same way as published subgenus names.
> (If that makes sence?)
> Brachyopa (Brachyopa) ...
> Brachyopa (Hammerschmidtia) ...
> Lejops (Lejops) ...
> Lejops (Anasimyia) ...
> Are in the above examples Lejops and Brachyopa a valid subgenus of its
> own parent?
> If a subgenus is declared do we use this form so all species of the
> genus are still on an equal level?
> Sorry for my ignorance but I am dealing with the relation of names in my
> database for the upcoming new syrphidae.com and I want to do this in the
> currently accepted way.
> regards,
> Bastiaan
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