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Humbie Hovers Id needed

 
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Sandy



Joined: 22 Jul 2008
Posts: 135
Location: East Lothian

PostPosted: Mon Aug 31, 2009 2:18 pm    Post subject: Humbie Hovers Id needed Reply with quote

Going through some photos I've found some I need help with.
The first are Epistrophes, a genus which I'm unsure about separating the various species.
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Sandy



Joined: 22 Jul 2008
Posts: 135
Location: East Lothian

PostPosted: Mon Aug 31, 2009 2:24 pm    Post subject: Reply with quote

The first is a Scaeva but is it selenitica or pyrastri? and why?

The second individual looks like a Cheilosia illustrata whose hair has fallen out. Or is it something completely different?



Many thanks in advance,

Sandy
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Ian Andrews



Joined: 08 Aug 2007
Posts: 180
Location: Pocklington, East Yorkshire

PostPosted: Mon Aug 31, 2009 4:04 pm    Post subject: Reply with quote

Hi Sandy

The first looks like pyrastri to me, as the lunules are white, not yellow, and do not hook round so far foward on the outside.

You will want to wait for more expert comment, though.

Have enjoyed the Dutch vernacular references!

Ian
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Roger K.A. Morris



Joined: 06 Nov 2005
Posts: 1652

PostPosted: Mon Aug 31, 2009 4:48 pm    Post subject: Reply with quote

Hello Sandy

Your first three are Epistrophe grossulariae

The Scaeva is pyrastri and of course the last one is C. illustrata.

Data welcome

Regards

Roger
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Sandy



Joined: 22 Jul 2008
Posts: 135
Location: East Lothian

PostPosted: Mon Aug 31, 2009 7:34 pm    Post subject: Reply with quote

Thanks Ian & Roger

I need to swat up on Epistrophes and that was one scruffy "scruff". Wink
I do need to study the two Scaeva species more closely. Thanks for the info.

Regards,
Sandy
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