Thread subject: Diptera.info :: Syrphidae: Chrysotoxum intermedium ?
Posted by KathrinJ on 27-01-2019 22:24
#1
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
Edited by KathrinJ on 27-01-2019 22:25
Posted by KathrinJ on 27-01-2019 22:26
#2
specimen 1 - closeup of antennae
Posted by KathrinJ on 27-01-2019 22:26
#3
specimen 2
Date: 15.09.2017
Location: Germany, Baden-Württemberg, Black Forest, Murg valley, Schönmünzach, in a mainly coniferous forest
Posted by KathrinJ on 27-01-2019 22:27
#4
specimen 2
Posted by KathrinJ on 27-01-2019 22:27
#5
specimen 2 - closeup of antennae
Posted by Sundew on 28-01-2019 02:12
#6
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 02:15
Posted by KathrinJ on 28-01-2019 11:25
#7
Thank you, Sundew, for your very informative answer and the additional information about the species complex :).
With kind regards,
Kathrin