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Diptera.info :: Family forums :: Syrphidae
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Helophilus problem
Tony Irwin
#1 Print Post
Posted on 19-07-2008 10:09
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Location: Norwich, England
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 Caught on a saltmarsh in Norfolk, England 16 July 2008.
Female Helophilus species with female H.trivittatus (on left) for comparison.
Any suggestions?
Tony Irwin attached the following image:


[33.58Kb]
Edited by Tony Irwin on 19-07-2008 10:09
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Tony Irwin
#2 Print Post
Posted on 19-07-2008 10:10
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 another dorsal view
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[38.27Kb]
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Tony Irwin
#3 Print Post
Posted on 19-07-2008 10:11
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 and lateral
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[67.52Kb]
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Tony Irwin
#4 Print Post
Posted on 19-07-2008 10:12
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 and face (trivittatus on left)
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[34.14Kb]
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Stephane Lebrun
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Posted on 19-07-2008 11:13
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 Hello Tony, your specimen has hind margin of tergites black, so I can suggest you a female of Hellophilus affinis. Fore tarsi should be darkened only on dorsal surface. Other characters seems to correct for me.
Stephane.
 
Tony Irwin
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Posted on 19-07-2008 11:31
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 Thanks Stephane - I did wonder about affinis, but the fore tarsi are darkened below. Sad
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Stephane Lebrun
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Posted on 19-07-2008 12:06
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 I don't know how reliable is that character, but I can't see anything else matching with this one. The close H. groenlandicus is very improbable by having a black area of hair on scutum, well darker legs, sharper spots on T2...
Stephane.
 
Andre
#8 Print Post
Posted on 19-07-2008 17:50
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 Why not a very dark hybridus? They do occur...
 
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pjt - just send the post and attached image. Do not preview thread, as this will lose the link to the image,

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