The ordinary or household bedbug, or Cimex lectularius, is found worldwide. These insects adapt well to human environments and classically live in temperate climates. A number of additional pests resemble bedbugs in habits and appearance.
The tropical bedbug, or Cimex hemipterus, was only recently discovered by the Medical Entomology Department, ICPMR (Institute of Clinical Pathology and Medical Research). Found in the tropical regions such as Florida, this species infests poultry and bats.
Leptocimex boueti, or bat bugs, has also been observed in tropical regions. This species feeds primarily on bats, although they do sometimes choose human hosts. Bat bugs and bedbugs are very similar in appearance and one can only distinguish between them through microscopic examination. Additional species, such as Cimex pilosellus and C. pipistrella, also target bats.
Located primarily in North America, the Mexican chicken bug, or Haematosiphon inodora, also closely resembles the common bedbug. However, these insects are classically found on poultry farms and choose bird species and domestic fowl as hosts.
Barn swallow bugs look like bedbugs as well. Though barn swallow bugs feed primarily on cliff swallows and live in swallow nests, they have been known to enter human dwellings when bird migration occurs.
It is very important to accurately identify bedbugs before beginning treatment of an infestation: incorrect control methods will prove ineffective and it may be harmful to small children, pets and furnishings.