The life span of adult bed bugs may reach 9-18 months, and six to seven generations could be produced under favourable conditions per year.
The eggs hatch in about one week at 18 to 25✬ the nymphal stage takes 14 to 30 days to complete. Both species are found in Hong Kong.Īlthough the presence of bed bugs has traditionally been seen as a problem in developing countries, it has recently been spreading rapidly in parts of the United States, Canada, the United Kingdom, other parts of Europe and Korea.īed bugs go through the egg, nymph and adult stages. The former is distributed worldwide while the latter is mainly found in tropical regions. There are two species of bed bugs causing nuisance to humans, namely the common bed bug, Cimex lectularius, and the tropical bed bug, Cimex hemipterus. Bed bugs are small parasitic insects that feed solely on the blood of warm-blooded animals.
