Boxelder bug

Description:

the weather warmed up the first of April and these guys came out in droves - all stages seen; these mating; they are everywhere on logs on the ground; adults about 1/2-inch long; black with red markings, including three stripes on the prothorax area right behind the head; wings lay flat over their bodies, overlapping each other to form an ‘X’; immature nymphs are 1/16th-inch long and bright red when they first hatch;

Habitat:

urban schoolyard

Notes:

a nuisance!! but don't see any real damage from them; no Boxelder trees here; they were under a Sugar Maple tree