Where Do German Roaches Come From?

Baby German Cockroach

If you have the German cockroach problem in your house, then the first thing that comes to your mind would be; How to Kill German Roaches. It is well known as small roaches. It is the most current list of household pests and the smallest among all. 

They usually like a moist environment with a comparatively high degree of warmth. They typically eat all kinds of foods but like sweet or sugar-related foods a lot. They like meats too. Generally, they hide during the day and come out at night. They can reproduce themselves very rapidly — the best place to find it is the kitchen.

German vs American Cockroach

The difference between them is easily identifiable. Check the difference between German and American roaches below.

German Cockraoch
American Roach


1 ½ – 2 inches

Half an inch long


Tan with dark


Prefer Place

Warmth and moisture

Warmth and moisture

Hiding Spot

kitchens and Bathrooms

Basements, crawl spaces and around or inside drains

Carry Disease



Egg Size

ootheca can be 7 mm in length and 2 mm wide in size

ootheca can be 6 mm in length and 2 mm wide in size

What Does a German Roach Look Like?

Because of its small size and by two dark collateral lines running from the back of the head to the wings, it can be the easiest way to identify them. German roaches are mainly brown, and its length is 6-9 mm.

Their preferred temperature is 15-35 degrees, and nymph development is 54-215 days. They are relatively wide and have flat bodies. Though they have long wings, they can’t fly, and the female one is typically larger than the male one.

Life Cycle:

What Does a German Roach Look Like

Well, it has three stages in their lifetime. They are eggs, nymphs, and adults. Their entire lifespan of approximately 100 days. Their life begins with the egg stage. The ootheca contains 35 eggs, and their colors are brown.

After hatching the eggs, they come to the next step, called the nymph stage. They are wingless and incapable of reproduction. And the last one is the adult. In this stage, they got wings that can be 2-5 inches long and can reproduce quickly.

German Roach Eggs:

Well, it has three stages in their lifetime. Their life begins with the egg stage, which is called the ootheca. The ootheca contains more than 35 eggs at a time. 

At first, they like brown. They can be 7 mm in length and 2 mm wide in size. The female one is seen as very careful at this stage. Sometimes they don’t lay eggs for the safety of the eggs. They carry them in their mouths until they hatch.

Baby German Cockroach:

Nymph is the second stage of their lifetime. In this stage, they are .08-1 inch in length. Gradually, they look darken into dark brown. They don’t get any wings at this stage. They are also unable to reproduce themselves.

They got parallel lines visible upon the head. The nymph molts six or seven times and develops itself entirely within 100 days. How Do German Roaches Reproduce?

German Cockroach Size:

Among all of them, this is smaller than the other. The size is approximately 1.5-2 inches long. In the adult stage, it is 0.8-1 inches long.

Scientific Name of Cockroach

The scientific name of the German cockroach is Blattella germanica. It’s in the Ectobiidae family and the Insecta class.

How Do German Roaches Reproduce?

German roaches can reproduce very quickly than others. It takes completely different approaches to hatch. The female one carries the eggs until they hatch. They usually don’t take any risks to hatch. They always keep themselves in safe places where foods are available.

Sometimes they carry eggs in their mouths. They can produce 4-8 egg capsules in their lifetime. Each capsule can contain 30-40 eggs, and after 30 days, they hatch the eggs. Above all, the German roaches carry the egg capsule for such an extended period.

German Roach Poop:

There is no doubt that roach doesn’t poop. They poop a lot at a time. They can be spotted easily. They look black with dark brown. Their sizes look like the grain of rice or coffee ground. The poops are nasty and annoying. Poops can do significant damage to our health. It causes diarrhea, asthma attack, or gastro and makes you seriously ill. The adult’s poop can be more dangerous.

German Roach Bites:

German roaches are omnivorous. They like to eat everything. Generally, they don’t bite. They bite when they feel unsafe. They have no intention of biting anyone. But sometimes like to chew on my fingernails, feet, or hands.

Their bites are not so severe, but sometimes they can do damage to us. Their bite can carry infection and causes minor wound infection. Sometimes they try to bite other insects or animals to protect themselves.

As you can see, German roaches have a very specific life cycle with three distinct stages. They reproduce quickly, and their bites can carry infections, so it’s important to be careful around these pests. If you think you have a German roach problem in your home, contact a professional exterminator to get rid of them as soon as possible.

I hope this article has helped you learn more about German roaches and their life cycle. If you have any questions, feel free to leave a comment below, and I’ll be happy to answer them. German roaches are a nuisance, but with the proper knowledge, you can get rid of them for good! Thanks for reading!