Bedbug

Bedbugs (Cimex lectularius) are small, brownish flattened wingless insects. They are nocturnal parasites, therefore are active at night feeding on the blood of humans. Adults are up to 4-5 mm in length and 1.5-3 mm wide. 

Female bedbugs have the ability to lay up to five eggs a day and can lay up to 500 eggs in a life time. The eggs are 1 mm long, milky-white and visible to the naked eye. The eggs hatch in one to two weeks. It takes about five weeks for a bedbug to pass from hatching to maturity. They become reproductively active only at maturity. 

Parasitic in nature, bedbugs are bloodsucking insects. They are normally active at night but may feed at other times if given the opportunity. They reach their host by walking, or sometimes climb the walls to the ceiling and drop down. Bedbugs are attracted to their hosts by warmth and the presence of carbon dioxide.