This species tends to prefer the outdoors, whereas the German cockroach prefers living indoors. The method works well with the American cockroach, but less so with the German cockroach. Once fertilized, a female German cockroach develops an ootheca in her abdomen. The intermediate host is the German cockroach ("Blattella germanica"). The German cockroach is an intermediate host of the Acanthocephalan parasite "Moniliformis kalahariensis". The German cockroach ("Blattella germanica") is a small species of cockroach, typically about long.