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<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D'>Dr Francis Gilbert<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D'>Associate Professor of Ecology, School of Biology<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D'>University Park, University of Nottingham, Nottingham NG7 2RD,
UK<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D'>Tel: +44 (0) 115 951 3215<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D'>website: <a href="www.nottingham.ac.uk/~plzfg"><span
style='color:blue'>www.nottingham.ac.uk/~plzfg</span></a><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D'> </span><u><span style='font-size:8.0pt;
font-family:"Tahoma","sans-serif";color:#0070C0'>ecology.nottingham.ac.uk<o:p></o:p></span></u></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<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"'> Wittsell, Rasmus - Xylem
[mailto:Rasmus.Wittsell@Xyleminc.com] <br>
<b>Sent:</b> 14 August 2012 12:38<br>
<b>To:</b> syrphidae@nottingham.ac.uk<br>
<b>Subject:</b> Advanced hunting behaviour or what?<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:black'>Greetings</span><span
lang=EN-US>!<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Today I observed an unusual thing as I was
having lunch in my garden. Being a former ecology student (at the university in
Lund<span style='color:black'>, 1980s</span>) I recognized that this could be
of interest to the right person<span style='color:black'>s</span>. In
short, this is what I saw and I also propose an explanation<span
style='color:black'>, however far-fetched</span>:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>A wasp (species undetermined) landed on the
table in front of me. It looked strangely deformed, so I took a closer look.
The wasp was actually piggy-backing a hoverfly (also species unknown).
Obviously the wasp had caught the <span style='color:black'>hover</span>fly,
but it was just holding on to it in a way that <span style='color:black'>reminded
me of a</span> mating<span style='color:black'> embrace</span>. It <span
style='color:black'>immediately occurred to</span> me that the fly may have
been fooled into allowing the wasp to mount it. If this was so, it would <span
style='color:black'>further </span>imply that the hoverfly was <span
style='color:black'>a victim </span>of its own mimicry strategy because the
wasp had developed a hunting strategy that capitalizes on it.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>I don’t have any more information, as the
insects promptly flew away. The fly was still alive and it seemed to be <span
style='color:black'>actively </span>participating in the flight<span
style='color:black'>(, though it was probably just trying to escape)</span>.
Both insects were of equal size and the wasp was of a rather small species,
though I didn’t have time to observe it for more than a few seconds. I live in <span
style='color:black'>Sjöbo in </span>southernmost Sweden.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Best regards<o:p></o:p></span></p>
<p class=MsoNormal><b><span lang=EN-US style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'> </span></b><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Rasmus Wittsell<o:p></o:p></span></p>
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