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Diptera.info :: Family forums :: Syrphidae
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Two syrphid flies
Juergen Peters
#1 Print Post
Posted on 28-04-2005 23:33
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Location: northwest Germany
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Hello!

I fotographed these two syrphid flies today on a meadow near a small forest in Ostwestfalen/Germany. Can someone be so kind to help me identifying them? Thanks in advance!

The first one was rather tiny (6-8 mm):

insektenfotos.de/ento/2804/Syrphidae_1.jpg


A little bigger (somewhat between a house fly and a small Eristalis) the second one visiting Taraxium blossoms:

insektenfotos.de/ento/2804/Syrphidae_2.jpg


Best regards,
Jürgen

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Juergen Peters
Borgholzhausen, Germany
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Gerard Pennards
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Posted on 28-04-2005 23:54
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Hello Juergen,
I think I can help you! :-))
The first picture is the female of Parasyrphus punctulatus.
Normally the spots on the abdomen are quite characteristic, but in this picture they are more difficult too see. But I am quite sure it is this species.
The second is very nice! It is a male of the species that was formerly known as Megasyrphus annullipes or Megasyrphus erraticus.
Nowadays it belongs in the genus Eriozona, so this is a male of Eriozona erraticus!
Greetings,
Greetings,
Gerard Pennards
 
Arthropa
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Posted on 28-04-2005 23:56
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Location: Fragnes (Burgundy, France)
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Hello,

I was about to try to give some answer, but Gerard was more rapid ! Grin

I thought the second fly was some Syrphus sp.Frown What makes the difference ?

Edited by Arthropa on 28-04-2005 23:59
Benoit MARTHA Smile
 
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Gerard Pennards
#4 Print Post
Posted on 29-04-2005 00:34
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Hello Benoit,
There are a few differences between this one and Syrphus sp. The first and most important one is the curved vein R4+5 in the wing (as in Eupeodes lapponicus), in Syrphus this vein is straight.
Second, the shape of the spots on the abdomen is typical, with the curved spots on segment 2, and the bands on 2 and 3 with the typical 'bite' out in the middle.
Third, but maybe not so visible in the picture is the dark, shiny thorax, in Syrphus this is more green/yellowish and dull.
Last but not least, the species has a black spot just above the antennae.
These are the most obvious differences!
Greetings,
Greetings,
Gerard Pennards
 
Juergen Peters
#5 Print Post
Posted on 29-04-2005 02:53
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Hello, Gerard!

Thanks alot for your help!

Gerard Pennards wrote:
The first picture is the female of Parasyrphus punctulatus.


Ah yes. I had taken a picture of this species a few days ago at another place, but was not quite sure if this one was the same.

The second is very nice! It is a male of the species that was formerly known as Megasyrphus annullipes or Megasyrphus erraticus.
Nowadays it belongs in the genus Eriozona, so this is a male of Eriozona erraticus!


Interesting! I had this species (I think) in last August, but the stripes seemed to be a little narrower and more pure yellow:

insektenfotos.de/ento/2804/Eriozona_erraticus.jpg

Best regards,
Jürgen

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Juergen Peters
Borgholzhausen, Germany
WWW: http://insektenfo...
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Gerard Pennards
#6 Print Post
Posted on 29-04-2005 08:56
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Hello Juergen,
Yes, this is the same species, but in this case it is the female!
By the way, I should correct myself, the name is not E. erraticus, but it should be Eriozona erratica!
Greetings,
Greetings,
Gerard Pennards
 
Juergen Peters
#7 Print Post
Posted on 29-04-2005 19:44
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Gerard Pennards wrote:
Hello Juergen,
Yes, this is the same species, but in this case it is the female!
By the way, I should correct myself, the name is not E. erraticus, but it should be Eriozona erratica!
Greetings,


Thanks, Gerard!


Best regards,
Jürgen

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Juergen Peters
Borgholzhausen, Germany
WWW: http://insektenfo...
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http://insektenfotos.de/forum
Arthropa
#8 Print Post
Posted on 29-04-2005 23:32
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Location: Fragnes (Burgundy, France)
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Thanks for your explanations, Gerard !...
...and please let's go further for newbies like I am ! Wink

So, if I understood your explanations, with a R4+5 straight vein and yellowish thorax, this one should be some Syrphus sp? Right ?

marthaadsl.free.fr/ATH/photos/ATH05-04-21-003.jpg
Saint Apollinaire (Burgundy, France), 21th April 2005 - body length 9 mm
Benoit MARTHA Smile
 
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Gerard Pennards
#9 Print Post
Posted on 29-04-2005 23:46
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Location: Amersfoort
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Hello Benoit,
Yes, you pick up the syrphid lessons quite well! GrinGrinGrin
This is indeed a male Syrphus sp., you can compare it with the photo that Juergen submitted, than you will see the differences I mentioned.
Greetings,
Greetings,
Gerard Pennards
 
Arthropa
#10 Print Post
Posted on 30-04-2005 00:14
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Location: Fragnes (Burgundy, France)
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I've always needed good teacher to understand lessons ! Grin
Very kind of you.

Best regards.
Benoit MARTHA Smile
 
http://arthropa.free.fr
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23.09.21 15:29
All sorted.

16.09.21 22:24
Sorry put 5 new threads in Asilidae forum instead in Syrphidae forum, can pleas an admin move it to Syrph? THANKS, Norbert

09.09.21 07:48
https://www.jeugdb
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product/de-vliegen
families-met-drie-
voetkussentjes/

09.09.21 07:47
wing ventation is totally different

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28.06.21 15:24
thx TO eklans

03.06.21 11:11
@Tony Irwin Thank you Tony! I've emailed you there Pfft

02.06.21 22:26
Rob - can you PM me with an e-mail address, and I'll send it over.

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The part that got deleted is "longer, dark median stripe on thorax"

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