Cockroaches are brown/black bodied animals from class Insecta of Phylum Arthropoda. They have well-developed reproductive organs in both sexes. Male reproductive system consists of a pair of testes on each lateral side. From each testis arises a thin vas deferens, which opens into ejaculatory duct through seminal vesicle that opens into male gonopore situated ventral to anus. The genetelia are external and represented by male gonapophysis.