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Cimex Linnaeus, 1758
This is the best known genus of the family of bed bugs with around 10 blood-sucking species. Several parasitize humans, above all the common bed bug. The other species often parasitize bats. They are active during the day and hide in cracks during the night. They only stay on their host during feeding.
The eggs are about ½ mm long and the development through 5 nymphal stages to adults takes around 2 months. The adults reach a length of about 5 mm. Compared with related genera from the family Cimicidae. The species of Cimex have a pronotum with a deeply concave front margin with the head being embedded in the margin.
Currently, the following species have been entered into the system: