What kind of insect is it? I found it hanging on the wall at night. It was approximately an inch long. Near my dormitory there is a lot of birch trees. The photo was taken in Prague, Czech Republic. ![enter image description here](

This is the heart and dart moth (Agrotis exclamationis). Its name refers to the special black spots, which have shape of dart and heart.

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This moth is one of the most common in the Paleoarctic ecozone. It has a wingspan of 35-44 mm. The larva of this moth is brown above and grey below. It is capable of feeding itself on a variety of plants.