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Very strange hoverfly! Neoascia or Sphegina spp??

 
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timz501



Joined: 31 Mar 2008
Posts: 9

PostPosted: Mon Jun 02, 2008 11:53 am    Post subject: Very strange hoverfly! Neoascia or Sphegina spp?? Reply with quote

A friend of mine sent me this photo of what looks like a Neoascia or Sphegina spp but rather than being a black body with orange markings it is orange with a few black markings!!
Have never seen one like this before! Has anyone else?
It was taken in Wales.
Is anyone able to shed any light on what species this is and whether melanism is usual in these genus?
Thanks in advance for any help Smile

Tim.
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Tony White



Joined: 12 Mar 2006
Posts: 61
Location: Byfield, Northants

PostPosted: Mon Jun 02, 2008 1:41 pm    Post subject: Reply with quote

Certainly an oddity Tim. Not, I would have thought, Neoascia. The wing venation is much more Sphegina-like, but.......
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timz501



Joined: 31 Mar 2008
Posts: 9

PostPosted: Mon Jun 02, 2008 2:22 pm    Post subject: Sphegina sibirica yellow form? Reply with quote

Having looked through all my available literature i have found that there is a yellow form of Sphegina sibirica which this probably is?
Is found in low numbers in Wales (dunno about the yellow form) so is in right area for this species.
Anyone able to confirm this for me?
Thanks
Tim.
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Mick Parker



Joined: 21 Sep 2005
Posts: 26
Location: Weymouth

PostPosted: Mon Jun 02, 2008 5:00 pm    Post subject: Reply with quote

Yes! Tim,

It does look like Sphegina sibirica,

Me & other members of the Dipterists Forum, found it in numbers in Wales at Blaen-y-Cwm, Myndd du Forest, Brecon, on the 10th June 1997
( during the Dipterists Forum Annual Fieldweek based at Abergavenny )
I hope that helps,
Mick
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timz501



Joined: 31 Mar 2008
Posts: 9

PostPosted: Mon Jun 02, 2008 5:13 pm    Post subject: Reply with quote

Thanks very much Mick and Tony! I did not realise S. sibiricus had a yellow form until i was sent this shot so i've learnt something new!
I'll try and get the details of exactly where this photo was taken and then see if is a new area, as this species does seem to be expanding.
Cheers again
Tim.
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conopid



Joined: 03 Sep 2005
Posts: 342
Location: Shrewsbury, Shropshire

PostPosted: Mon Jun 02, 2008 7:27 pm    Post subject: Reply with quote

Yes, this is definitely S sibirica, I took several specimens just like it in 2006. please do submits details to the secheme.
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Nigel Jones
Shrewsbury
Shropshire
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