An excellent Question, but not so easy to answer.
It is also known as the "Croton bug" the Latin name is (Blattella germanica).
The only reason that is logical is that they were first catalogued by a German botanist.
There is an interesting article on the link below.
I suppose you're talking about the insect? The German Cockroach can be found anywhere. They do best in warmer climates but can live in cold climates within human establishments. These roaches are originally from Russia, not Germany, and are closely related to the Asian Cockroach.
German cockroach was created in 1767.
There are about 4000 sub-species of cockroach, some larger than others. Domestic cockroaches in Germany are fairly ordinary and can be about 10mm in width.The species Blattella Germanica, or the German cockroach is considerably smaller measuring about 13mm in length and less than a quarter of this in width.
The German cockroach is a bit smaller, and slightly faster. The American cockroaches are the largest cockroach that tends to inhabit homes. The German has the highest reproductive rate of the two.
There are many types of cockroaches. These include the American cockroach, the smokeybrown cockroach, oriental cockroach, brown banded cockroach, as well as the German cockroach.
The insecticide DDT will sterilize a German cockroach. The insecticide will prevent the cockroaches from reproducing and will eventually kill them.
Küchenschabe
Blatella germanica (German cockroach)Supella longipalpa (brownbanded cockroach)Periplaneta americana (American cockroach)Blatta orientalis (oriental cockroach) Parcoblatta(wood cockroach)
The Asian cockroach flies and looks like a German cockroach. The Asian cockroach is attracted to lights. It can fly up to 120 feet.
The German cockroach has about 22
There are many species of cockroach..German, brown, and brown banded are just a few.
all over the world