These insects (Cecidomyiidae) are distributed worldwide with around 6,000 species. The body length is 0.5 to 4, with a few up to 8 mm. The body is usually yellow-orange, ochre, red to almost black in colour. They spend almost their entire life in the larval stage. The larvae of almost all species live monophagously (narrow food spectrum) on only one plant species. The fully developed mosquitoes only live for a short time and hardly feed.
In European vineyards, the leaf gall midge (Cecidomyia oenophila) and the vine blossom gall midge (Contarinia viticola) are...
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