bedbug

bedbug, any of the small, blood-sucking bugs of the family Cimicidae, which includes about 30 species distributed throughout the world. Bedbugs are flat-bodied, oval, reddish brown, and about 1-4 in. (6 mm) long. They emit an unpleasant-smelling oily secretion from two glands on their undersurface. All are parasites of warm-blooded animals. The common human bedbug of temperate regions, Cimex lectularis, is largely nocturnal, spending the day in crevices in walls and furniture and in bedding. Its bite causes irritation in many individuals, but it is not known to transmit diseases. It will feed on other mammals and poultry when humans are not available and can live up to a year without feeding. Maturation from egg to adult takes about two months in warm conditions; there may be three or four generations a year. Control methods include steaming, spraying, and fumigating. Another parasite of humans, C. hemipterus, is common in the Old World tropics. A North American species, Haematosiphon inodora, parasitizing poultry, will also bite humans. Other species attack bats and various kinds of bird. Bedbugs are classified in the phylum Arthropoda, class Insecta, order Hemiptera, family Cimicidae.

Bibliography

See publications of the U.S. Dept. of Agriculture.

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bedbug

Bedbug (Cimex lectularius) magnified 5 ×

(credit: William E. Ferguson)

Any member of approximately 75 species of nocturnal insects (family Cimicidae) that feed by sucking the blood of humans and other warm-blooded animals. The reddish brown adult is broad and flat and less than 0.2 in. (4–5 mm) long. Among the most cosmopolitan of human parasites, they are found in every kind of dwelling. They digest meals slowly; adults have lived for at least a year without food. Though the bite is irritating, it is not known to transmit diseases to humans.