Bed bugs are parasitic insects of the cimicid family that feed exclusively on blood. The term most commonly refers to members of the genus Cimex of which Cimex lectularius, the common bed bug, is the best known as it prefers to feed on human blood although other Cimex species are specialized to other animals
They can infest homes and are best adapted to human environment. Adult bedbugs are 4-5 mm (1/8th ??? 3/16th of an inch) in length, oval, flattened and reddish-brown or purple, wingless with microscopic hairs and well developed antennae on their heads. Newly hatched insects are translucent and pale. Not difficult, since bedbugs do not move very quickly, cannot fly and live in groups. During the daytime, the insects hide in bed frames, tiny crevices, wood holes and mattress seams. The name of the "bed bug" is derived from the preferred habitat of Cimex lectularius: warm houses and especially nearby or inside of beds and bedding or other sleep areas. Bed bugs are mainly active at night, but are not exclusivelynocturnal. They usually feed on their hosts without being noticed.
A number of adverse health effects may result from bed bug bites, including skin rashes, psychological effects, andallergic symptoms. Diagnosis involves both finding bed bugs and the occurrence of compatible symptoms.
Bed bugs have been known as human parasites for thousands of years. At a point in the early 1940s, they were mostly eradicated in the developed world, but have increased in prevalence since 1995. Because infestation of human habitats has been on the increase, bed bug bites and related conditions have been on the rise as well