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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Matt,</span></font></p>
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10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I have had this experience with larvae of Heringia
calcarata. It has been sporadic and unpredictable, but like you, I would be
interested to know if anyone has an explanation.</span></font></p>
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10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Cheers - Chris</span></font></p>
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10.0pt;font-family:Arial;color:navy'> </span></font></p>
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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Chris Bergh</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Associate Professor of Entomology</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>540-869-2560 ext. 32</span></font></p>
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style='font-size:12.0pt;color:navy'> </span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b>
syrphidae-bounces@lists.nottingham.ac.uk
[mailto:syrphidae-bounces@lists.nottingham.ac.uk] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Perkins, Matthew<br>
<b><span style='font-weight:bold'>Sent:</span></b> Sunday, June 27, 2010 8:28
AM<br>
<b><span style='font-weight:bold'>To:</span></b>
syrphidae@lists.nottingham.ac.uk<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Syrphidae] Raising
Syrphus larvae</span></font></p>
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style='font-size:12.0pt'> </span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;color:black'>Good
afternoon,</span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>I could do with some advice on my
hoverflies! Thanks already for those who have already offered much useful
advice on my first PhD experiemnt examining food chain lengths... this
email list has proved invaluable.</span></font></p>
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style='font-size:12.0pt'> </span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>I have two new querries though if
anyone could help: </span></font></p>
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style='font-size:12.0pt'> </span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>I am raising Syrphus
ribesii larvae and am keeping each larvae individually in small glass /
plastic test tubes and provide them with a small leaf and lots of
fresh aphids every day. I clean the tubes every day, and use damp
cotton wool to plug the ends of the tube. They are kept at 70% humidity, 16:8
hours light: dark.</span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>1. My larvae are now 6 days old and
I need to know if they have any requirements for successful development
into pupae</span></font> - do they require something to stick too or
do they need to hang upside down etc. Also should I need to keep them moist
throughout their pupae stage? </p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>2. I have recently had many (less than 25%) of
different age classes turn black and die. It appears on first glance like
they have not discharged their gut... but I have no idea. Does anyone
recognise these symptoms or could provide advice or keeping more alive?</span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Thanks,</span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Matt Perkins</span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>PhD Researcher</span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Center for Ecology & Conservation</span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>University of Exeter,</span></font></p>
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style='font-size:12.0pt'>Cornwall Campus</span></font></p>
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