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Diptera.info :: Identification queries :: Other insects, spiders, etc.
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Curious mine on birch
pierred
#1 Print Post
Posted on 12-06-2017 12:20
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Location: Paris (France)
Posts: 1250
Joined: 21.04.05

Hello,

upper side of the leaf:
www.galerie-insecte.org/galerie/image/dos181/big/5db26798.jpg
Pierre Duhem : France : Saint-Leu-la-Forêt : 95320 : 27/04/2017
Altitude : 183 m - Taille : Sans objet
Réf. : 181769

lower side of the leaf:
www.galerie-insecte.org/galerie/image/dos181/big/5db26801.jpg
Pierre Duhem : France : Saint-Leu-la-Forêt : 95320 : 27/04/2017
Altitude : 183 m - Taille : Sans objet
Réf. : 181770

I tried to pinpoint the author of this mine, on http://www.bladmineerders.nl and http://www.leafmines.co.uk, but without success.

I'm now thinking about a mine caused by a Coleophoridae, whose case fell from the leaf for whatever reason, leaving this result. I visited the same site yesterday and found several other leaves with similar pattern.

Thanks in advance for any clues.
Pierre Duhem
 
BubikolRamios
#2 Print Post
Posted on 12-06-2017 22:40
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Location: Slovenia
Posts: 1611
Joined: 14.06.09

forinstance: http://agrozoo.ne...bddc255953

You have tentiform mine between two side veins. Holes are exit slits.

bladmineerders.nl: Lower-surface, little contracted tentiform mine. Often several mines in a leaf. Frass concentrated in a corner of the mine, from above recognisable as a black patch

In order to locate frass & larva & identify anything allways do backlight photo such as this (central image): http://agrozoo.ne...40cf78da60
You can see that top photo is practicaly useless.
Edited by BubikolRamios on 12-06-2017 22:42
highly searchable nature photo galery --> http://agrozoo.ne....jsp?l2=en
 
http://agrozoo.net/jsp/Galery.jsp?l2=en
pierred
#3 Print Post
Posted on 13-06-2017 08:16
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Location: Paris (France)
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Joined: 21.04.05

Thanks for your comments.
Pierre Duhem
 
empeejay
#4 Print Post
Posted on 20-06-2017 21:31
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Joined: 15.05.06

These certainly look like typical Coleophora feeding signs to me.
 
pierred
#5 Print Post
Posted on 21-06-2017 07:57
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Location: Paris (France)
Posts: 1250
Joined: 21.04.05

Thanks also.
Pierre Duhem
 
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