Which species of cockroach carries her egg capsule until just before it hatches?

The German cockroach is known for its unique reproductive behavior, where the female carries her egg capsule, or ootheca, with her until just before the eggs are ready to hatch. This protective strategy allows the female to safeguard the developing embryos from environmental threats and predation, enhancing the chances of survival for her offspring.

In contrast, other cockroach species, such as the American cockroach and smoky brown cockroach, typically deposit their egg cases in hidden, secure locations shortly after they are produced. The Oriental cockroach also exhibits similar behavior by leaving the egg case hidden rather than carrying it with them. This distinction in parental care practices is a crucial part of the life cycle of the German cockroach, enabling it to thrive in its environments, particularly in human habitats.