Featured speciesText © K. Reißmann, T. Hörren, M. Stern, F. Bötzl and C. Benisch
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01.09.2017
Donacia sparganii Ahr., 1810
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The 7 to 8 mm large Aquatic Leaf Beetle Donacia sparganii (family Chrysomelidae) is widespread in Northern and Central Europe. The origin of the beetle's scientific name is its host plant Sparganium simplex (Sparganiaceae), on which both the beetle and its larvae feed and develop. Due to severe habitat loss over the recent years, Donacia sparganii has become increasingly rare and is regarded as vulnerable in Germany. Most of the loss of diversified reeds is due to water pollution and enrichment with nitrogen compounds (e.g. from fertilizers). But also the increasing use by fishers, surfers and other visitors caused destructions to those habitats. (KR)
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