These insects (Cecidomyiidae) are widespread worldwide with about 6,000 species. The body length is 0.5 to 4 millimetres, in a few up to 8 millimetres. The body is usually yellow-orange, ochre, light or dark red to almost black. They spend almost their whole life in the larval stage. The larvae of almost all species live monophagous (narrow food spectrum) on only one plant species. The fully developed mosquitoes only live for a short time and hardly take up any food. In Europe, the species leaf gall midge (Cecidomyia oenophila) and the vine flower gall midge (Contarinia viticola) are among the vine pests. The females bore the underside of the leaves and...
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Thorsten Rahn
Restaurantleiter, Sommelier, Weindozent und Autor; Dresden