''Gymnocheta viridis'' is a metallic green

tachinid The Tachinidae are a large and variable family of true flies within the insect order Diptera, with more than 8,200 known species and many more to be discovered. Over 1,300 species have been described in North America alone. Insects in this family ...

fly found throughout

Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...

, mainly in springtime.

References

Diptera of Europe Tachininae Insects described in 1810 Taxa named by Carl Fredrik Fallén {{Tachininae-stub