quality:corruption
Evolution

Cimicidae, the ancestor of modern bed bugs, first emerged approximately 115 million years ago, more than 55 million years before bats—their previously presumed initial host—first appeared. From unknown ancestral hosts, a variety of different lineages evolved which specialized in either bats or birds. The common (C. lectularius) and tropical bed bug (C. hemipterus) split 40 million years before Homo evolution. Humans became hosts to bed bugs through host specialist extension (rather than switching) on three separate occasions.