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Diptera.info :: Family forums :: Syrphidae
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Syrphidae: Chrysotoxum intermedium ?
KathrinJ
#1 Print Post
Posted on 27-01-2019 21:24
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Hello,

after a discussion about Chrysotoxum in another forum, I wanted to check, if these two specimens might be Chrysotoxum intermedium?

specimen 1

Date: 21.09.2017
Location: Germany, Baden-Württemberg, Black Forest, Wolfach - Halbmeil, Hohberg NNW camping area, in a sparsely grown mixed forest
KathrinJ attached the following image:


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Edited by KathrinJ on 27-01-2019 21:25
 
KathrinJ
#2 Print Post
Posted on 27-01-2019 21:26
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specimen 1 - closeup of antennae
KathrinJ attached the following image:


[77.67Kb]
 
KathrinJ
#3 Print Post
Posted on 27-01-2019 21:26
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specimen 2

Date: 15.09.2017
Location: Germany, Baden-Württemberg, Black Forest, Murg valley, Schönmünzach, in a mainly coniferous forest
KathrinJ attached the following image:


[114.1Kb]
 
KathrinJ
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Posted on 27-01-2019 21:27
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specimen 2
KathrinJ attached the following image:


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KathrinJ
#5 Print Post
Posted on 27-01-2019 21:27
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specimen 2 - closeup of antennae
KathrinJ attached the following image:


[60.58Kb]
 
Sundew
#6 Print Post
Posted on 28-01-2019 01:12
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Location: Berlin and Baden-Württemberg, Germany
Posts: 3939
Joined: 28.07.07

With the 3rd antenna segment longer than 1+2 together and a very short-haired abdomen it should be C. intermedium according to the key http://web.archiv...x_key.html. Speight (2017, http://pollinator...counts.pdf) points out that "C. intermedium" is rather a species complex, and the individuals of central Europe might be C. lessonae. To find out in detail is a job for the experts and requires molecular studies...
Regards, Sundew
Edited by Sundew on 28-01-2019 01:15
 
KathrinJ
#7 Print Post
Posted on 28-01-2019 10:25
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Thank you, Sundew, for your very informative answer and the additional information about the species complex Smile.

With kind regards,
Kathrin
 
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