Chrysops relictus
Encyclopedia
The adult twin-lobed deerfly, Chrysops relictus, is a largish Europe
Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

an fly of about 8 to 10.5mm length, The larva
Larva
A larva is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle...

e feed upon organic matter in damp soils, and are termed hydrobionts in that they inhabit areas of high water content.
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