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Diptera.info :: Identification queries :: Diptera (adults)
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Aphanotrigonum trilineatum
GAREL Jean-Michel
#1 Print Post
Posted on 02-03-2021 07:48
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Posts: 86
Joined: 18.12.19

Hello,
this Chloropidae was observed yesterday (March 1st) in our garden. This specimen is very similar to the picture added in your gallery by Dmiitry GAVRYUSHIN. I believe that it is Aphanotrigonum trilineatum. Do you agree with my identification ? Thanks for your responses. Sincerely yours, Jean-Michel Garel.
www.galerie-insecte.org/galerie/image/dos276/big/Dipt%202mm%200103.jpg
Jean-Michel GAREL : France : Brannay : 89150 : 01/03/2021
Altitude : NR - Taille : 1 mm
Réf. : 276587

www.galerie-insecte.org/galerie/image/dos276/big/Conop%200103.jpg
Jean-Michel GAREL : France : Brannay : 89150 : 01/03/2021
Altitude : NR - Taille : 1 mm
Réf. : 276588
Edited by GAREL Jean-Michel on 02-03-2021 09:34
 
Xylosoma
#2 Print Post
Posted on 02-03-2021 09:12
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Hi Jean-Michel,
I think that there are not enough marginal setae on scutellum for Aphanotrigonum trilineatum as you see on the specimen figured by JariF in the gallery. (You accidently writing of Phoridae but the family Chloropidae is correct.)
Regards
Xylo
Edited by Xylosoma on 02-03-2021 09:13
 
GAREL Jean-Michel
#3 Print Post
Posted on 02-03-2021 09:37
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Thanks Xylosoma. Is the genus Aphanotrigonum correct ? Is-it possible to propose a species ? Marginal setae on the scutellum are clearly seen in the specimen of JariF but not for the picture of Gavryushin !
Edited by GAREL Jean-Michel on 02-03-2021 09:49
 
von Tschirnhaus
#4 Print Post
Posted on 04-03-2021 15:04
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Location: Bielefeld, Germany
Posts: 247
Joined: 04.11.07

Chloropidae: Aphanotrigonum trilineatum (Meigen, 1830), junior synonyms Oscinis annulifera Zetterstedt, 1848 and Aphanotrigonum beschovskii Dely-Draskovits, 1981. A very similar species is Aphanotrigonum nigripes (Zetterstedt, 1848) with very weak or missing brown stripes, mostly shorter wings and on average a smaller body size. A. trilineatum has phytosaprophagous larvae developing in Poaceae (grasses), including cereals. It is not rare all over Europe until Japan und Palaearctic China and occurs also in North America. On bogs and deforested areas within coniferous forests it is especially abundant (trials with yellow pan traps by M.v.T.). Flies are overwintering like several Elachiptera species. One feature of A. trilineatum and A. nigripes is singular among European chloropids: The lateral part of most abdominal tergites is separated from the dorsal part by a weak interruption. By this movability of the tergites the abdomen can become inflated after the ingestion of much food or during egg ripening. Thus, it is better protected by the lateral perpendicular parts of the tergites than in normal chloropid species. This morphological detail was not yet mentioned in the literature, e.g. in Nartshuk & Andersson (2012), Fauna ent. scand 43, or Kanmiya (1983), Mem. ent. Soc. Wash. 11.
 
http://www.uni-bielefeld.de/biologie/sammlung/inde
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09.05.21 16:31
Extensions in uppercase are (and were) accepted for gif, jpg, jpeg and png

09.05.21 16:01
OK, thanks Roger, now if someone would just ID the fly I would be happy.

06.05.21 22:31
FTAO - Gordon; Please make sure that you use lower case, because attachments with extensions in upper case (capitals) are rejected. So sayeth GOD AKA Paul. Cool

06.05.21 21:40
A file called "Fly01a" has an UPPERCASE "F" Gordon. The site takes a dim view of UPPERCASE "'F's"!! awkward

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OK, it has started working now, no idea what was going on.

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I know I have been away a long time - but why can't I load a 63Kb file called Fly01a

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Negrobov, Michael Ackland, Chris Thompson, Laszlo Papp... The Grim Reaper ravages in 2021

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@PaulBeuk Thanks again mate- very useful! Smile

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11.03.21 18:23
Greetings! Does anyone have: Satchell's 1947 paper: The larvae of the British species of Psychoda (Diptera: Psychodidae)??? Many thanks Smile

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