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 Dark R ed Syrphid
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| Tony T |
Posted on 06-06-2007 19:14
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 Member Location: New Brunswick, Canada Posts: 662 Joined: 08.02.07 |
31 May 2007 New Brunswick Canada. Length 9mm.
Tony T attached the following image:  [99.19Kb] |
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| Gerard Pennards |
Posted on 06-06-2007 20:29
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 Member Location: Amersfoort Posts: 1914 Joined: 07.06.04 |
This is a female of Chalcosyrphus pigra (in Europe it is called C. piger)  Greetings Greetings, Gerard Pennards |
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| Kahis |
Posted on 06-06-2007 20:54
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 Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
It's a Chalcosyrphus, but I am somewhat surprised if this is the same species we call C. piger. My sole female of the latter species has all-black legs, no black borders on abdomen and no spots around the crossveins. Perhaps our syrphid gurus know better and this is just intraspecific variability.
Kahis |
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| Gerard Pennards |
Posted on 07-06-2007 20:05
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Member Location: Amersfoort Posts: 1914 Joined: 07.06.04 |
Dear Jere, Yes, it is the same species, according to Spheight it also occurs in the Nearctic, where it indeed exists under the wrong name Chalcosyrphus pigra! ( Spheight 2006: This species is often mistakenly referred to in recent literature as C.pigra, a mis-spelling not mentioned by Peck (1988).) I think indeed that the nearctic specimens are a bit different in coloration. Greetings, Gerard Edited by Gerard Pennards on 07-06-2007 20:05 Greetings, Gerard Pennards |
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| John Smit |
Posted on 07-06-2007 20:26
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 Member Location: Utrecht Posts: 565 Joined: 05.10.04 |
I agree with Kahis, from the looks of it it's a diifferent species, not only are the legs 'the wrong colour' but also the very distinct markings in the wings, can't say I can recall ever having seen such clear markings in the Palearctic specimens, and I have seen quite a few... John |
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| Gerard Pennards |
Posted on 07-06-2007 20:43
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Member Location: Amersfoort Posts: 1914 Joined: 07.06.04 |
Well, you guys might be right, because I forgot the possibility that there could be other Chalcosyrphus species in the nearctic who look like piger (like this one does) but are a bit different. This is what Chalcosyrphus piger in the nearctic seems to look like: http://bugguide.net/node/view/26492 And indeed it has a different leg color, but also, in my opinion, very dark wings! greetings, Greetings, Gerard Pennards |
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| crex |
Posted on 07-06-2007 20:48
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 Member Location: Sweden Posts: 1996 Joined: 22.05.06 |
Perhaps C. libo  Edit: Ehh, probably not. The face color is different. Perhaps I should just shut up
Edited by crex on 07-06-2007 20:53 |
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| Kahis |
Posted on 07-06-2007 21:04
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Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
crex wrote: Perhaps C. libo Edit: Ehh, probably not. The face color is different. Perhaps I should just shut up Why the edit? Perhaps you should speak out loud and clear C. libo looks like a much better match.
Kahis |
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| crex |
Posted on 07-06-2007 21:32
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Member Location: Sweden Posts: 1996 Joined: 22.05.06 |
Kahis wrote: Why the edit? Perhaps you should speak out loud and clear C. libo looks like a much better match.Perhaps, but libo has light face, Tony's fly is black faced ... and there are 29 species of Chalcosyrphus. |
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but don't see the image in the post.