Which cockroach species has the longest duration from egg to adult?

The American Cockroach is known for having one of the longest life cycles among common cockroach species. From the time an egg is laid until it reaches adulthood, it can take several months to a year, depending on environmental factors such as temperature and food availability. This extended duration is due to various life stages that the American Cockroach undergoes, which includes multiple molts before reaching adulthood.

In contrast, species like the German Cockroach tend to have a much shorter life cycle, taking only a few months from egg to adult. The other species mentioned, such as the Smokybrown and Brownband Cockroaches, also have comparatively quicker life cycles. Therefore, the American Cockroach stands out as the species with the longest duration from egg to adult, making it significant in pest control considerations, as its prolonged life cycle can affect population management strategies.