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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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Can you manage a better lateral shot of the head?

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Jep, certainly possible.
I hope its sufficient?










Bye;
Jonas

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Another one:


Jonas

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Jonas,
Maybe this key is helpful: The british species of Stegana Meigen

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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

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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. :D Indeed check it with insecta helvetica...

Lateral view of the head if needed...




Dieter

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European and north american species of Stegana (Diptera, Drosophildae)

It gives te same result ;)

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Jonas, all my keys also give the same result. Congratulations on this splendid find!

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:D :D :D :D

Based on wing length?

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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.

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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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Thanks. It will go into the collection of Natuurhistorisch Museum Maastricht (NHMM)