Which cockroach keeps its ootheca attached to its abdomen until just before the eggs hatch?

The German cockroach is known for its unique reproductive behavior, particularly in how it handles its ootheca, or egg case. Unlike many other cockroach species that deposit their ootheca into safe locations, the female German cockroach carries the ootheca attached to her abdomen for a significant period of time, typically until shortly before the eggs are ready to hatch. This strategy provides protection for the developing eggs from environmental hazards and predators.

This attachment to the abdomen allows the female to ensure that the eggs are kept in a conducive environment with the right level of humidity and warmth, which are crucial for the survival and successful hatching of the nymphs. Just before the eggs hatch, the female will then drop the ootheca in a sheltered location where the young cockroaches can emerge safely.

Understanding this reproductive strategy is important for pest control professionals, as it can influence the timing and methods used in managing German cockroach populations effectively.