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products         Trichoptera Families 07     Product Info     Sample of Images     Software Images     Detail List     List of Families     Study Area     Product Folder PDF           Online Key     Trichoptera Families	Study Area         The map of European countries, covered by the key.   The study area extends over the entire European continent, including the European part of Russia, Iceland, the British and Mediterranean Isles and Turkey. Two of the 24 known Trichopteran families, Arctopsychidae and Calamoceratidae, are not covered by the program.