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Diptera.info :: Family forums :: Syrphidae
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Syrphidae: Portevinia maculata ? --> No, it's Cheilosia semifasciata
kuv
#1 Print Post
Posted on 06-12-2019 14:45
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Location: Schenefeld near Hamburg
Posts: 2639
Joined: 30.04.10

Northern Germany, Schleswig-Holstein, Schenefeld near Hamburg, hedge with a drainage ditch between a playground and a field of a nursery school for trees, grown up with bushes like Corylus, Acer campestre, Salix and other, at a leaf of Prunus padus, 30th of April 2019, Outdoorphotos: kuv. Is my idea ok? Please help me to get the ID.
Kuv
kuv attached the following image:


[76.15Kb]
Edited by kuv on 07-03-2020 14:38
 
kuv
#2 Print Post
Posted on 06-12-2019 14:46
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Location: Schenefeld near Hamburg
Posts: 2639
Joined: 30.04.10

2nd picture:
kuv attached the following image:


[114.78Kb]
 
Xylosoma
#3 Print Post
Posted on 07-12-2019 10:16
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No, this is not Portevinia maculata, there are too many hairs on eyes.
Xylo
 
kuv
#4 Print Post
Posted on 08-12-2019 12:04
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Location: Schenefeld near Hamburg
Posts: 2639
Joined: 30.04.10

Thank you very much Xylo,
so it remains "Cheilosia sp." ?
Greetings Kuv
 
Karsten Thomsen
#5 Print Post
Posted on 06-03-2020 19:47
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Judging from Bot & Meutter 2019, the combination of dark antennae, hairy eyes, and clear, welldefined grey-blue spots on the tergits should point to Cheilosia fasciata. C. semifasciata has less clear spots and is quite small.
I have myself never seen any of the two mentioned Cheilosia, however.
 
Ectemnius
#6 Print Post
Posted on 06-03-2020 22:26
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Location: The Netherlands
Posts: 763
Joined: 22.11.11

Hello people,

Portevinia has red antennae. Cheilosia fasciata has dark hairs on the eyes and quite extensive red around the knees. The dark legs, light hair on the eyes, weak spots on the abdomen and habitat all point to Cheilosia semifasciata. Also the quite downward protruding face, although poorly visible from this angle, is an indication
The larvae mine the leaves of Sedum sp., a common garden plant.
This is also from experience as I have seen all the aforementioned species multiple times in the field...

Kind regards,

Ectemnius
 
kuv
#7 Print Post
Posted on 07-03-2020 14:37
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Location: Schenefeld near Hamburg
Posts: 2639
Joined: 30.04.10

Woow, thank you very much Thomas Smile and Ectemnius Smile.
So I think I can change headline to Cheilosia semifasciata!
Best regards Kuv
 
Karsten Thomsen
#8 Print Post
Posted on 07-03-2020 15:08
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Congrats, kuv - I trust that we will find this species in Denmark one day, too, since both the British and the Norwegians have it, too. :-)
 
kuv
#9 Print Post
Posted on 08-03-2020 11:27
Member

Location: Schenefeld near Hamburg
Posts: 2639
Joined: 30.04.10

Thanks Thomas and good luck to find this fly in Denmark.
Greetings Kuv
 
Ectemnius
#10 Print Post
Posted on 08-03-2020 14:08
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Location: The Netherlands
Posts: 763
Joined: 22.11.11

Wow, it's not listed as Danish in faunaeuropea indeed! If you want to find it, don't look in the vicinity of Sedum sp. In the Netherlands it has been found at least several kilometers away from the nearest Sedum plant.
The place and time to look for it is in April and May along paths in forests. There you find males, sometimes in a group, defending a territory on some leaves. Mostly found in parks and small woods in the vicinity of urban areas.

Kind regards,

Ectemnius
 
Karsten Thomsen
#11 Print Post
Posted on 19-03-2020 23:52
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Location:
Posts: 89
Joined: 07.01.16

Thank you for the useful tips, Ectemnius! :-)
 
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