In Denmark, there are a dozen different horse-fly species of the family Tabanidae.
The biggest fly in Denmark is a horse-fly, namely the 3 cm long pale giant horse-fly, Tabanus bovinus. However, it is mainly the smaller species which can become so numerous that they become troublesome: deer flies of the genus Chrysops, which has yellow markings on the abdomen and brown-spotted wings and the common horse fly, Haematopota pluvialis, which is one centimeter long and characterized by its grey, white-spotted wings.
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