Temnostethus gracilis is a species of minute pirate bug in the family Anthocoridae.

[1][2][3][4] It is found in Europe and across the Palearctic to the Caucasus and Siberia (excluding China) and North America.

[1] Temnostethus gracilis lives on the bark of various deciduous trees, both those densely covered with lichens and mosses, and on those that are quite smooth, such as ( Fagus sylvatica ), common ash (Fraxinus excelsior ) or aspens (Populus tremula ).

They are predatory on aphids, Psylloidea, Psocoptera and mites, but also on other small arthropods.

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