Size: Adult bed bugs are about 1/4 inch long. Nymphs (baby bed bugs) range from 1.3 mm to 4-5 mm.
Appearance: Unfed adults are mahogany to rusty brown; engorged bed bug is red-brown after a blood meal. Nymphs (baby bed bugs) are nearly colorless when they first hatch and become brownish as they mature. Unfed bed bugs are flat; broad oval; fed bed bugs become swollen and more elongated.
Habitat: Bed Bugs like to hide in small cracks and crevices close to a human environment. They can be found behind baseboards, wallpaper, upholstery, and in furniture crevices. Beg bugs are also known to survive in temporary or alternative habitats, such as backpacks and under the seats in cars, busses and trains.
Potential Harm: Although bed bugs can dine on any warm-blooded animal, they primarily dine on humans. Bed bugs do not transmit diseases, but their bites can become red, itchy welts.