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Diptera.info :: Identification queries :: Diptera (adults)
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Syrphidae - Riponnensia splendens, actually?
Filex
#1 Print Post
Posted on 05-01-2008 13:46
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Hi, I would appreciate any help to identify this fly.

I found it several times in September 2007 close to ponds in a cork-oak forest in Palam?s, Girona (NE Spain).

It looks to me like it could belong to Stratiomyiidae. It has a very characteristic eye colour.

Thanks

Miquel
Filex attached the following image:


[121.09Kb]
Edited by Filex on 06-01-2008 20:51
 
Xespok
#2 Print Post
Posted on 05-01-2008 13:48
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It is a Syrphid. Change the title to attract the Syrphid guys.
Gabor Keresztes

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Teglagyar u. 30.
Zeegers
#3 Print Post
Posted on 05-01-2008 14:00
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Looks like Orthonevra


Theo
 
Gerard Pennards
#4 Print Post
Posted on 05-01-2008 16:01
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Yep, Theo's right, and I think it's a male Orthonevra nobilis!
greetings,
Greetings,
Gerard Pennards
 
Filex
#5 Print Post
Posted on 06-01-2008 20:51
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May it be Riponnensia splendens instead?
 
Andre
#6 Print Post
Posted on 06-01-2008 22:27
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Crossed my mind too... Just like Lejogaster tarsata (I found specimens with dark tarsae, and the shape of the antennae can vary and could be this pic doesn't show it from the best angle). But this species has the eyes separated in the male.
Anyway, I am a bit confused though, by the reddish looking antennae (flash?). A 100% ID is risky.
Edited by Andre on 09-01-2008 18:37
 
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Gerard Pennards
#7 Print Post
Posted on 06-01-2008 23:23
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Ooops, my mistake!
Indeed a male Riponnensia splendens! I caught these guys myself in France, and I should know the habitus!
Theo said Orthonevra and I thought (without books) it should be nobilis then. Riponnensia didn't even cross my mind.....SadSad
It's time spring starts, so we can fresh up the knowledge on live animals...GrinGrin
Greetings,
Greetings,
Gerard Pennards
 
Zeegers
#8 Print Post
Posted on 07-01-2008 09:56
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I'm oldfashioned, in my head Ripponensia is still an Orthonevra.
It clearly insn't, but my database between my ears don't want make the necessary changes. Sorry.
(Close readers will notice the 'looks like' part)
 
Andre
#9 Print Post
Posted on 07-01-2008 11:35
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I never had a longicornis in my hands... again: the agle of the pic offers some room for doubt.
 
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Filex
#10 Print Post
Posted on 08-01-2008 22:33
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I have 8 pictures of this species taken in the same place on close dates, from different orientations. They all show the red antennae, so it might not be a flash effect. I attach a second picture from a different angle.

Thanks a lot for all your comments!
Filex attached the following image:


[49.33Kb]
 
Andre
#11 Print Post
Posted on 08-01-2008 23:31
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Do you have a sideview of the face?
 
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Filex
#12 Print Post
Posted on 08-01-2008 23:58
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This is the most similar to a side view of the face that I have.
Filex attached the following image:


[30.9Kb]
 
Andre
#13 Print Post
Posted on 09-01-2008 18:33
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It's defenitely Riponnensia (no O. nobilis, for the eyes are meeting over a very short distance in nobilis).
Because I cannot reliably estimate the length of the 3rd antennae, we will stick to R. splendens/longicornis.
[Between these two, I would guess longicornis though]
Would be nice to collect some next year and send them to me please. Pfft

Can you describe me the exact environment where you found them?
 
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Filex
#14 Print Post
Posted on 09-01-2008 19:47
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The environment is a cork-oak (Quercus suber) and Aleppo pine (Pinus halepensis) forest, with holm-oak (Quercus ilex) along the temporary brooks, situated near the coast (less than 4km from the shore-line, about 25 m high). See link:

http://maps.google.es/maps?f=q&hl=es&geocode=&q=Palam%C3%B3s&ie=UTF8&ll=41.880042,3.11162&spn=0.029907,0.056992&t=h&z=14&om=1

The flies were found always just beside the small ponds that remain in very few places of the dried brooks even at the end of the summer. They are very shadow ponds inside the forest, with only limited sun at about midday.

I have only noticed this species at the end of September.
 
Andre
#15 Print Post
Posted on 09-01-2008 22:40
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Aha, september, ofcourse! That would point to splendens, not longicornis.

Longicornis is found to fly in june. Splendens from june till the end of september! Stupid of me... sorry, should have read your posting AND my literature better Shock
Edited by Andre on 09-01-2008 22:43
 
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Filex
#16 Print Post
Posted on 10-01-2008 23:21
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Thank you very much Andr? for your effort to identify this fly!

Miquel
 
Andre
#17 Print Post
Posted on 11-01-2008 13:42
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And you made nice pictures Wink
Do you collect as well, or just make pictures?
 
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Filex
#18 Print Post
Posted on 13-01-2008 19:54
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Just make picture. Otherwise I would be pleased to send you some specimens. Sorry.

Miquel
 
Andre
#19 Print Post
Posted on 13-01-2008 23:22
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Iberia needs more collectors Smile
There still is so much to discover... Frown
 
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