BEDBUGS are small, elusive, and parasitic insects that live strictly by feeding on the blood of humans and other warm-blooded animals. The name ‘bed bug’ is derived from the insect’s preferred habitat infesting house, especially beds or other common areas where people may sleep. Bedbugs are mainly active at night and are capable of feeding unnoticed on their hosts. Most observed bites consist of a raised red bump or flat welt, and are often accompanied by very intense itching. The red mark is the result of an allergic reaction to the anesthetic contained in the bedbug’s saliva. Reactions to bedbug bites may appear indistinguishable from mosquito bites, although they tend to last for longer periods. Bites may not become immediately visible and can take up to nine days to appear.