[Syrphidae] Re: FW: Hoverfly video

Pavel Láska laskap at seznam.cz
Fri Aug 31 10:27:43 BST 2012


THE HOVERFLY VIDEO IS VERY INTERESTING   Pavel Láska                                                                              ----- Original Message ----- 
  From: Francis Gilbert 
  To: Hoverfly discussion list 
  Sent: Friday, August 31, 2012 10:57 AM
  Subject: [Syrphidae] FW: Hoverfly video


   

   

  Dr Francis Gilbert

  Associate Professor of Ecology, School of Biology

  University Park, University of Nottingham, Nottingham NG7 2RD, UK

  Tel: +44 (0) 115 951 3215

  website: www.nottingham.ac.uk/~plzfg

                  ecology.nottingham.ac.uk

   

   

  From: Stephen Harris [mailto:sjh_qw at yahoo.co.uk] 
  Sent: 30 August 2012 16:43
  To: Francis Gilbert
  Subject: Re: Hoverfly

   

  I posted the 15 sec clip on Youtube if you are interested in seeing it

  Steve

  http://www.youtube.com/watch?v=a2HunTBKS6I&feature=youtu.be

   

   


------------------------------------------------------------------------------

  From: Francis Gilbert <Francis.Gilbert at nottingham.ac.uk>
  To: Stephen Harris <sjh_qw at yahoo.co.uk> 
  Sent: Sunday, 26 August 2012, 19:40
  Subject: RE: Hoverfly

   

  It's definitely mating behaviour. The male hovers above the female while she is feeding from flowers. It's actually most well known from Eristalis nemorum. There's a picture rather like yours in Stubbs & Falk.

   

  Francis

   

   

  Dr Francis Gilbert

  Associate Professor of Ecology, School of Biology

  University Park, University of Nottingham, Nottingham NG7 2RD, UK

  Tel: +44 (0) 115 951 3215

  website: www.nottingham.ac.uk/~plzfg

                  ecology.nottingham.ac.uk

   

   

  From: Stephen Harris [mailto:sjh_qw at yahoo.co.uk] 
  Sent: 26 August 2012 15:44
  To: Francis Gilbert
  Subject: Re: Hoverfly

   

  Hi Francis,

  I tried to send you a video clip of these two hoverflies - but the file too large.

  I observed this behaviour the other day, and managed to get a short video clip of it. 
  One hoverfly  hovered above the other for several minutes... within a few cms.
  The one on the flower was rubbing its back legs. I thought the hovering individual was waiting a turn on the flower.
  But, after several minutes, they flew off together. Is this part of a mating ritual, do you think.

  If interested, I'll try and find a way to send it (disc,  dropbox?)

  Steve

   

   


------------------------------------------------------------------------------

  From: Francis Gilbert <Francis.Gilbert at nottingham.ac.uk>
  To: Stephen Harris <sjh_qw at yahoo.co.uk> 
  Sent: Sunday, 26 August 2012, 13:29
  Subject: RE: Hoverfly

   

  I think this is Eristalis nemorum

   

  F

   

  Dr Francis Gilbert

  Associate Professor of Ecology, School of Biology

  University Park, University of Nottingham, Nottingham NG7 2RD, UK

  Tel: +44 (0) 115 951 3215

  website: www.nottingham.ac.uk/~plzfg

                  ecology.nottingham.ac.uk

   

   

  From: Stephen Harris [mailto:sjh_qw at yahoo.co.uk] 
  Sent: 26 August 2012 13:26
  To: Francis Gilbert
  Subject: Re: Hoverfly

   

  See previous email
  Could you open video clip?

  Steve

   

   


------------------------------------------------------------------------------

  From: Francis Gilbert <Francis.Gilbert at nottingham.ac.uk>
  To: Stephen Harris <sjh_qw at yahoo.co.uk> 
  Sent: Wednesday, 11 July 2012, 10:12
  Subject: RE: Hoverfly

   

  hi Steve

   

  You need the latest edition of Stubbs & Falk !

   

  This is definitely Eristalis. How big was it? It looks like a dark Eristalis tenax to me, but we cannot see the face and eyes, which would be more informative.

   

  Francis

   

   

   

  From: Stephen Harris [mailto:sjh_qw at yahoo.co.uk] 
  Sent: 11 July 2012 09:54
  To: francis.gilbert at nottingham.ac.uk
  Subject: Hoverfly

   

  Dear Francis

  I have a copy of your book on Hoverflies (Naturalists' Handbooks) and am interested in the wide variety of hoverflies. I photographed this one in our garden, in Norfolk yesterday, and couldn't find it in the book, Do you know what it is?

   

  Regards

   

  Steve Harris

   

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