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Diptera.info :: Identification queries :: Diptera (adults)
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Cricotopus sp. (cf tremulus) << Cricotopus pulchripes?
CedricMondy
#1 Print Post
Posted on 04-07-2022 23:32
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Location: Île-de-France (France)
Posts: 69
Joined: 30.06.21

 Hi everyone,

I found this one in Brittany. Based on the 'Handbook for the identification of British insects' dedicated to Chironomids, I would say that Cricotopus pulchripes does not seem like a bad option but I am really not sure...

Thanks for your advices!

www.galerie-insecte.org/galerie/image/dos305/big/photos_20210826220142.jpg
Cédric Mondy : France : Saint-Congard : 56140 : 26/08/2021
Altitude : 9 m - Taille : 2.5mm (estimé)
Réf. : 305892
Edited by CedricMondy on 07-07-2022 09:16
Cédric
 
John Carr
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Posted on 05-07-2022 18:38
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 Cricotopus pulchripes has tarsomere 2 of the fore legs contrasting white. There are at least three members of the tremulus group with dark fore tarsi and tergites 1 and 2 yellow.
 
http://www.flickr.com/photos/31715949@N00
CedricMondy
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Posted on 05-07-2022 19:17
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 Thank you John!
Cédric
 
CedricMondy
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Posted on 07-07-2022 09:20
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 Could you tell me what are the names of the species belonging to the tremulus group please?
Cédric
 
John Carr
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Posted on 07-07-2022 13:39
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CedricMondy wrote:
Could you tell me what are the names of the species belonging to the tremulus group please?


From Hirvenoja (1973):

Fore tarsomere 2 contrasting white: pulchripes
Fore tarsomere 2 and base of 3 contrasting white: septentrionalis, tremulus, claripes
Fore tarsomere 2 dark: tergites 1 and 2 yellow: tristis, curtus, annulator
Fore tarsomere 2 dark, tergites 1 and 4 yellow: beckeri, triannulatus

http://www.jstor....e/23733668
 
http://www.flickr.com/photos/31715949@N00
CedricMondy
#6 Print Post
Posted on 07-07-2022 14:14
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Location: Île-de-France (France)
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 Thank you!
Cédric
 
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