Mine

[R] Feeding channel made between the upper and lower surfaces of a leaf by a phytophagous larva of Insecta, or leaf miner. The shape of the mine (linear, ramified or spiral) and the arrangement of the frass (faecal matter) usually make it possible to identify a pest precisely.
Mines may also occur on the outer layers of stems.
Main leaf miners are :.
- on fruit trees : the apple small ermine moth Yponomeuta malinellus, the wild crab leaf miner Stigmella malella, the peach twig borer Anarsia lineatella, the spotted tentiform miner Phyllonorycter blancardella, the pear leaf blister moth Leucoptera malifoliella, the fruit tree case moth Coleophora hemerobiella, la apple leaf miner Lyonetia clerkella, the oriental peach moth Cydia molesta, the small olive leaf miner Metriochroa latifoliella, the Olive kernel borer Prays oleae ;.
- on cereals :the cereal tortrix Cnephasia pumicana, the wheat bulb fly Delia coarctata;.
- on various legume crops :.
the south American miner fly Liriomyza huidobrensis, Liriomyza bryoniae , the miner flies Agromyza spp., the celery fly Philophylla heraclei, the leek moth Acrolepiopsis assectella, Phyllotreta nemorum , Gortyna flavago , the chicory fly Ophiomyia pinguis, Gortyna xanthenes , the diamondback moth Plutella xylostella.

* Mines (INRA)
a: straight; b: lenticulary or round shaped.
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HYPPZ on line: Species (scientific names), Pests (common names), Glossary, Crops.