Spring-dispersal
Guides
Aradus depressus
pale-shouldered flatbug
Aradus depressus is a flat bug in the family Aradidae, the most common and widespread species in its genus. It occurs across the Palearctic from Ireland to Siberia, extending to the Caucasus Mountains in the southeast and reaching elevations up to 1,600 meters in the Alps. The species is strongly associated with hardwood trees colonized by fungi, particularly birch, and exhibits distinctive seasonal flight behavior in spring.