Box Elder Bug
Characteristics: Boxelder Bugs commonly congregate alongside homes or trees near a female Boxelder and in full view of the sun. They are identifiable by the distinct black and red coloring on their bodies (the red appearing as stripes against the black). Boxelder bugs will secrete a staining dye when crushed. If found indoors, your best bet is to remove them with a paper towl or vacuum cleaner to avoid a mess.
General Adult Size (Length):
11mm to 14mm (0.43in to 0.55in)
Indentifying Colors: red; black, gray