Diptera.info :: Identification queries :: Diptera (adults)
 [Drosophilidae] Stegana sp.
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| jonas |
Posted on 27-04-2011 15:50
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Member Location: Posts: 351 Joined: 06.05.07 |
Hi, I found this Stegana, 22 april, 2011, on a dead Fagus (next to some mating Brachypalpus laphriformis). Its a really pretty fly, how the white and black pattern from the body, reflects on the legs. Very nice! I hope this one can be identified to species? Thank you Jonas   and habitus with wings covering abdomen at a cool manner:  |
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| Paul Beuk |
Posted on 27-04-2011 19:12
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 Super Administrator Location: Netherlands Posts: 19403 Joined: 11.05.04 |
Can you manage a better lateral shot of the head?
Paul - - - - Paul Beuk on https://diptera.info |
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| jonas |
Posted on 28-04-2011 10:35
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Member Location: Posts: 351 Joined: 06.05.07 |
Jep, certainly possible. I hope its sufficient?     Bye; Jonas |
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| jonas |
Posted on 28-04-2011 10:38
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Member Location: Posts: 351 Joined: 06.05.07 |
Another one:  Jonas |
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| Dieter S |
Posted on 29-04-2011 10:22
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 Member Location: Belgium Posts: 55 Joined: 24.04.11 |
Jonas, Maybe this key is helpful: The british species of Stegana Meigen |
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| jonas |
Posted on 29-04-2011 13:59
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Member Location: Posts: 351 Joined: 06.05.07 |
According to that key it should be S. hypoleuca. According to faunaeur, a new one for Belgium. Should check it first with insecta helvetica though. And with some better equipment. Wing span is 5mm and more, by the way. Jonas Edited by jonas on 29-04-2011 14:03 |
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| Dieter S |
Posted on 29-04-2011 14:12
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Member Location: Belgium Posts: 55 Joined: 24.04.11 |
Jonas, If the key is reliable, then I found the same one today on the bark of a Fagus! So that would make it the second observation in Belgium.  Indeed check it with insecta helvetica...Lateral view of the head if needed...  Dieter Edited by Dieter S on 29-04-2011 14:26 |
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| Dieter S |
Posted on 29-04-2011 15:24
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Member Location: Belgium Posts: 55 Joined: 24.04.11 |
European and north american species of Stegana (Diptera, Drosophildae) It gives te same result 
Edited by Dieter S on 29-04-2011 15:25 |
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| Paul Beuk |
Posted on 11-07-2011 15:14
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Super Administrator Location: Netherlands Posts: 19403 Joined: 11.05.04 |
Jonas, all my keys also give the same result. Congratulations on this splendid find!
Paul - - - - Paul Beuk on https://diptera.info |
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| Dieter S |
Posted on 11-07-2011 15:37
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Member Location: Belgium Posts: 55 Joined: 24.04.11 |
Based on wing length? |
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| Paul Beuk |
Posted on 11-07-2011 15:46
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Super Administrator Location: Netherlands Posts: 19403 Joined: 11.05.04 |
Well, objectively speaking, yes, but I collected quite a few Stegana earlier this and they were considerably smaller so my first view of Jonas' specimen told me exactly where I should look in the keys. However, the keys also mention the number of rows of acrostichal setae (14+) and that character was also a fit.
Paul - - - - Paul Beuk on https://diptera.info |
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| jonas |
Posted on 18-07-2011 07:02
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Member Location: Posts: 351 Joined: 06.05.07 |
Thanks Paul! You can keep the specimen in your collection, it will be of more use there I assume Bye Jonas |
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| Paul Beuk |
Posted on 18-07-2011 08:45
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Super Administrator Location: Netherlands Posts: 19403 Joined: 11.05.04 |
Thanks. It will go into the collection of Natuurhistorisch Museum Maastricht (NHMM)
Paul - - - - Paul Beuk on https://diptera.info |
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