Plesiodema pinetella is a true bug. The species is found across Palearctic from Europe and Western North Africa East to Siberia and Central Asia. Plesiodema pinetella feeds on Pinus, spruce Picea and Larix but in Central Europe especially on Pinus sylvestris, and Pinus nigra, and at higher altitudes in the Alps on mountain pine Pinus mugo. The imagines occur from late May to early July, where their life expectancy is only about two weeks.