Cockroach Eggs Size, Appearance, Hatching – A Complete Guide With Pictures

Cockroach eggs are small and oval-shaped. They are typically brown or black and can be found in groups. Cockroach lay their eggs in dark, hidden places to ensure their security. Once they hatch, the young cockroaches, called nymphs, are small and without wings. Nymphs will molt several times as they grow and become adults.

Where do Cockroach Lay Eggs?

Cockroaches lay eggs in many different places, depending on the species. Some cockroaches lay eggs in oothecae, which are hard, protective cases. Other cockroaches lay their eggs in simple clusters. Some cockroaches even give birth to live young.

Cockroaches typically lay their eggs in dark, hidden places. This helps to protect the eggs from predators and also provides a more humid environment, which is ideal for development. Cockroaches will often lay their eggs near food sources, as this provides an easy source of nourishment for the developing young.

What do Cockroach Eggs Look Like?

Cockroach eggs are small and brown and typically lay in clusters. Each egg is surrounded by a thin, transparent membrane. And when you look closer, you can see that the eggs are quite intricate.

What does Roach Eggs Look Like

Each egg has a small amount of liquid inside, and this is what the developing cockroach larva will feed on. The membrane surrounding the egg protects it from predators and the environment.

Cockroach Egg Hatching Period

The hatching period of cockroach eggs is between 24 to 38 days.

How Many Eggs Does A Cockroach Lay?

A cockroach can lay 16 to 48 eggs, but a healthy oriental cockroach can lay up to 320 eggs.

Size of Cockroach Eggs

Cockroach egg size is normally equal to 1/3 inch, while the size of eggs of oriental and smoky brown cockroaches is up to 0.5 inches.

Size of Cockroach Eggs

Do Cockroaches Lay Eggs When Killed?

Cockroaches do not lay eggs when killed. Cockroach species have 3 strategies to protect themselves from enemies. They run away, they hide, or they pretend to be dead. When they are hiding, they close their mouth and stop breathing. So they cannot lay any eggs. Sometimes, they also release a poisonous liquid to keep enemies away.

How Many Cockroaches in One Egg?

According to the CDC, there are between 10 and 50 cockroaches in every egg of the cockroach. Mainly it depends on the species of the cockroach. Most of the cockroach eggs are scattered inside the walls, behind the wallpaper, and in the kitchen.

What does Roach Eggs Look Like?

Roughly spherical, with a smooth surface. They are generally dark brown or black and have a small white area at the center.


Cockroaches usually lay eggs several times a year. They usually lay between 16 and 50 eggs at one time. The eggs are usually white to yellow and are the size of a grain of rice. The eggs are usually found behind walls or in dark, warm places. The eggs can take anywhere from 24 days to 2 months to hatch, depending on the temperature in which they’re kept. A hot temperature will speed up the hatching time, while a cold temperature will slow it down.

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