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<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Thanks, that does clarify a number of things already at first sight!</span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">The Metcalf book I also got from Ximo Mengual, but thanks nevertheless.</span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Cheers</span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"> </span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">joachim</span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"> </span></p>
<p class="MsoNormal"> </p>
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<p class="MsoNormal"><b><span lang="NL" style="font-size:10.0pt; font-family:"Tahoma","sans-serif"">Van:</span></b><span lang="NL" style="font-size:10.0pt; font-family:"Tahoma","sans-serif""> syrphidae-bounces@lists.nottingham.ac.uk [mailto:syrphidae-bounces@lists.nottingham.ac.uk]
<b>Namens </b>Francis Gilbert<br>
<b>Verzonden:</b> dinsdag 10 april 2012 23:20<br>
<b>Aan:</b> Hoverfly discussion list<br>
<b>Onderwerp:</b> [Syrphidae] Re: genitalia nomenclature etc</span></p>
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<p class="MsoNormal"> </p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">here's a glossary I prepared for my book (if it ever gets published!)</span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"> </span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Francis</span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"> </span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"> </span></p>
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<p class="MsoNormal"><span lang="EN-GB" style="font-size:8.0pt; font-family:"Tahoma","sans-serif"; color:#1F497D">Dr Francis Gilbert</span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:8.0pt; font-family:"Tahoma","sans-serif"; color:#1F497D">Associate Professor of Ecology, School of Biology</span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:8.0pt; font-family:"Tahoma","sans-serif"; color:#1F497D">University Park, University of Nottingham, Nottingham NG7 2RD, UK</span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:8.0pt; font-family:"Tahoma","sans-serif"; color:#1F497D">Tel: +44 (0) 115 951 3215</span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:8.0pt; font-family:"Tahoma","sans-serif"; color:#1F497D">website:
<a href="www.nottingham.ac.uk/~plzfg">www.nottingham.ac.uk/~plzfg</a></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:8.0pt; font-family:"Tahoma","sans-serif"; color:#1F497D">
</span><u><span lang="EN-GB" style="font-size:8.0pt; font-family:"Tahoma","sans-serif"; color:#0070C0">ecology.nottingham.ac.uk</span></u></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt; font-family:"Tahoma","sans-serif"; color:#1F497D"> </span></p>
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<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"> </span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt; font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt; font-family:"Tahoma","sans-serif"">
<a href="mailto:syrphidae-bounces@lists.nottingham.ac.uk">syrphidae-bounces@lists.nottingham.ac.uk</a>
<a href="mailto:[mailto:syrphidae-bounces@lists.nottingham.ac.uk]">[mailto:syrphidae-bounces@lists.nottingham.ac.uk]</a>
<b>On Behalf Of </b>MERGEAY, Joachim<br>
<b>Sent:</b> 09 April 2012 00:32<br>
<b>To:</b> Hoverfly discussion list (<a href="mailto:syrphidae@lists.nottingham.ac.uk">syrphidae@lists.nottingham.ac.uk</a>)<br>
<b>Subject:</b> [Syrphidae] genitalia nomenclature etc</span></p>
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<p class="MsoNormal"><span lang="EN-GB"> </span></p>
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<p class="MsoNormal"><span lang="EN-GB">Hi there,</span></p>
<p class="MsoNormal"><span lang="EN-GB"> </span></p>
<p class="MsoNormal"><span lang="EN-GB">Does anyone have a good standard work on male genitalia in Syrphidae?
</span></p>
<p class="MsoNormal"><span lang="EN-GB">I’m always a bit frustrated with the lack of clarity when genital structures are mentioned in keys or figures.
</span></p>
<p class="MsoNormal"><span lang="EN-GB">Somehow, it’s often found obsolete to indicate whether the drawing shows a lateral/ventral/dorsal view, and even just naming parts is rather exception than rule: epandrium, hypandrium/hypopygium, surstylus, gonostylus,
paramere, aedeagus, aedeagal lobe, ... Many of theses things seem to be taken for granted.
</span></p>
<p class="MsoNormal"><span lang="EN-GB">Identification guides go into great detail when it comes to define a priori the structural sides of the thorax, wing morphology, etc. but I have never seen this for Syrphid genitalia, nor how genitalia are modified segments
and how to “read” them. </span></p>
<p class="MsoNormal"><span lang="EN-GB">Often it’s called “genitalia” whereas it may refer only to a specific part of the genital apparatus. That’s like showing a picture of a first tarsus and labelling it as “leg”. Still, that’s pretty ok if you know that
the distal part of the leg is called the tarsus, but what to do if you don’t know where to find a paramere if nobody told you in the first place where it’s located, especially when it’s hidden by some other structure?
</span></p>
<p class="MsoNormal"><span lang="EN-GB">Interpreting such label-less 2D figures out of their structural context when confronted with a 3D specimen under a stereomiscroscope and linking this to a key can be really frustrating.
</span></p>
<p class="MsoNormal"><span lang="EN-GB">I had hoped to find a pdf of CL Metcalf’s work “The genitalia of male Syrphidae”. If anyone has it, I would be grateful to receive a digital copy. Other suggestions are welcome as well.
</span></p>
<p class="MsoNormal"><span lang="EN-GB"> </span></p>
<p class="MsoNormal"><span lang="EN-GB">Cheers</span></p>
<p class="MsoNormal"><span lang="EN-GB">joachim</span></p>
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