The Bed Bug
The bed bug (Cimex lectularius) is the most common “true bug,” and it’s very well suited to living with humans. It measures 5 to 8 mm when fully grown. It’s reddish-brown in colour and has a flat body, which allows the bed bug to infiltrate narrow spaces. The bed bug is a nocturnal insect, but in the case of a severe infestation, they can move around even during the day. They move slowly, which will allow an attentive observer to spot them.