The genus Blattella belongs to the family (also known as Ectobiidae) and contains some of the most successful and widespread cockroach species in the world. While the genus includes over 50 species primarily concentrated in the tropics and subtropics, it is most infamously known for the German cockroach ( Blattella germanica ), a premier household pest that has adapted almost exclusively to human environments. Taxonomy and Physical Characteristics
: Females produce an egg case called an ootheca, which they carry attached to their abdomen until just before the nymphs hatch. Each case can contain between 25 and 43 eggs. blattella
: While many species possess wings—with males often having wings longer than their bodies—they rarely fly and instead rely on their high-speed running for movement. Life Cycle and Rapid Reproduction The genus Blattella belongs to the family (also
: Their activity is controlled by an endogenous biological clock , making them most active at night when they forage for food and water in human shelters. Each case can contain between 25 and 43 eggs
Blattella species are typically small, generally ranging from 10 to 15 mm in length.