The adults are about 12½ mm (½ in) long with a dark brown or black coloration, relieved by red wing veins and markings on the abdomen; nymphs are bright red.
I found these specimens under some shrubs/small bushes. They were crawling through the fallen foliage. Wikipedia says they are "found primarily on boxelder trees, as well as maple and ash trees".
They are an American species of true bug, commonly known as the Box Elder Bug, the Zug, or Maple Bug. Im not 100% sure on the identification so I'd appreciate some feedback