What do bedbugs look like?
Adult bed bugs are small (about 5 mm to 9 mm in length), have flat, brown oval bodies that change color to purplish-red after a blood meal and the body becomes more cigar-shaped making it appear like a different insect. They are sometimes mistaken for wood ticks or small cockroaches.
The wings of bed bugs are vestigial, which mean they don’t fly. However, they can crawl. Fast.
Bed bugs are visible to the eye.
Nymphs, or immature bed bugs, are smaller (about 1.5 mm) and lighter colored.
You may also find cast skins, which are empty shells of bed bugs as they grow from one stage to the next.
After they eat, bed bugs deposit fecal spots of digested blood in areas adjacent to the feeding site.