<div dir="ltr">Dear Bastiaan<div><br></div><div>You address several problems.</div><div><br></div><div>Systema Dipterorum is not a scientific resource in the sense that it is an official publication organ and not peer-reviewed. The status of names on this website has no value for science. The names are not always officially published and should not be used by GBIF or anyone else if there is no publication stating the information on SD is correct.</div><div><br></div><div>The other thing is that "a useful scientific purpose" is arguable as there are several aspects involved like nomenclature, stability, phylogeny etc.</div><div><br></div><div>The last problem is that, when a name has not been in use for over 100 years it can be disregarded and thus not used. In the case of Philhelius the name was reintroduced by Evenhuis in 2018 with good arguments that it concerns Xanthogramma. This makes it very hard, if even possible to get Philhelius suppressed.</div><div><br></div><div>It is best if you write to Neal or any other member of the ICZN to ask if filing this case could be successful or not.</div><div><br></div><div>Good luck.</div><div><br></div><div>Best wishes,</div><div><br></div><div>Jeroen</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Op di 5 mrt 2024 om 11:54 schreef Bastiaan Wakkie <<a href="mailto:bwakkie@syrphidae.com">bwakkie@syrphidae.com</a>>:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u>
<div style="padding-bottom:1px">
Dear all,<br>
<br>
<br>
<p>Has someone (or is interested in) created an IUCN case to
suppress Philhelius Stephens, 1841:201 in favour of Xanthogramma
Schiner, 1860:215 ?</p>
<p><br>
</p>
<p>Evenhuis 2018, created a new synonym for Xanthogramma based on
his research on Daniel William Coquillett's work but mentions
while creating the synonym that suppression may be warranted in
case the synonym would be a threat to stability.<br>
</p>
<p>In Dipterists Digest 2018 there is a personal comment of Martin
Speight that "replacing the well-established generic name
Xanthogramma by<br>
Philhelius Stephens serves no useful scientific purpose and simply
introduces confusion"</p>
<p><br>
</p>
<p>The confusion has arrived as GBIF which is using Systema
Dipterorum as source, and any website using GBIF data are taking
over the synonym. </p>
<p><br>
</p>
<p>Time for action?</p>
<p>I am willing to file the case but may need some help in
formulating it correctly.</p>
<p><br>
</p>
<p>Cheers,</p>
<p>Bastiaan<br>
</p>
<p><br>
</p>
sources:<br>
Evenhuis, N. L. (2018). Nomenclatural studies toward a world list of
Diptera genus-group names. Part VI: Daniel William Coquillett.
Zootaxa, 4381(1), 1-95.<br>
<br>
EDITOR (2018). Corrections and changes to the Diptera Checklist
(39). Dipterists Digest, series 2: 25 (1): 79–84.<br>
<br>
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Bastiaan Wakkie
<a href="https://www.syrphidae.com" target="_blank">https://www.syrphidae.com</a></pre>
</div>
<u></u><u></u>
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