Cimicidae

Definition

A family of small, dorsoventrally flattened, obligate hematophagous bugs in the order Hemiptera, commonly known as bed bugs and bat bugs. Adults are apterous, possess piercing-sucking mouthparts, and feed exclusively on the blood of warm-blooded hosts, primarily bats and birds, with several lineages having independently colonized humans. The family comprises over 100 species in approximately 24 genera and six subfamilies, with a fossil record extending to the Cretaceous; host-switching to bats accompanied chiropteran radiation in the Eocene.

Etymology

From Cimex (type genus, Latin for 'bug') + -idae (family suffix)

Example

Cimex lectularius, the common bed bug, and Cimex hemipterus, the tropical bed bug, are the two Cimicidae species most frequently associated with human habitation and pest management.

Synonyms

• cimicids

Related Terms

• Cimex
• Heteroptera
• Cimicomorpha
• Hematophagy
• Ectoparasite
• Apterous
• host switching

Usage Notes

The common name 'bed bug' properly refers only to Cimex lectularius and C. hemipterus, not to the entire family; specialists use 'cimicid' for family-level reference. The family shows repeated convergent host shifts to humans from bat-associated ancestors. Members are frequently misidentified in field surveys due to morphological convergence among bat- and bird-associated lineages.