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 Curious mine on birch
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| pierred |
Posted on 12-06-2017 11:20
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 Member Location: Posts: 1413 Joined: 21.04.05 |
Hello, upper side of the leaf:  Pierre Duhem : France : Saint-Leu-la-Forêt : 95320 : 27/04/2017 Altitude : 183 m - Taille : Sans objet Réf. : 181769 lower side of the leaf:  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 |
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| BubikolRamios |
Posted on 12-06-2017 21:40
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Member Location: Posts: 1723 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 21:42 highly searchable nature photo galery --> http://agrozoo.ne....jsp?l2=en |
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| pierred |
Posted on 13-06-2017 07:16
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Member Location: Posts: 1413 Joined: 21.04.05 |
Thanks for your comments.
Pierre Duhem |
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| empeejay |
Posted on 20-06-2017 20:31
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Member Location: Posts: 234 Joined: 15.05.06 |
These certainly look like typical Coleophora feeding signs to me. |
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| pierred |
Posted on 21-06-2017 06:57
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Member Location: Posts: 1413 Joined: 21.04.05 |
Thanks also.
Pierre Duhem |
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but don't see the image in the post.
