Describe reproductive system of Periplaneta and draw neat and labeled diagram of it.

In Periplaneta sexes are separate.
Male Reproductive system consists of

• Testes: One pair are present in 4^th to 6^th abdominal segments.
• Vas deferens:
  i) It arises from posterior end of each testis.
  ii) The two vasa deferentia run backwards and open into ejaculatory duct.
• Ejaculatory duct:
  i) It is a wide median duct.
  ii) It is present in 7^th segment.
  iii) It opens at male genital pore on ventral phallomere.
• Mushroom gland:
  i) It is present in 6^th and 7^th abdominal segments.
  ii) It has two types of tubules.

• Utriculi majores:
  i) They are outer long tubules
  ii) They form inner layer of spermatophores
• Utriculi breviores:
  i) They are central short tubules.
  ii) They nourish the sperm.
• Seminal vesicles:
  They store sperms in the form of spermatophore.

• Phallic gland:
  i) It is present near gonopore.
  ii) It secretes outer layer of spermatophore.
• Phallomeres:
  i) They are 3 phallomeres present around male genital pore.
  ii) They help in copulation.

Female Reproductive system consists of

• Ovaries:
  i) A pair of ovaries are present in 2^nd to 6^th abdominal segments.
  ii) Each ovary has 8 ovarioles.
  iii) Each ovariole has anterior germarium with developing ova and a posterior vitellarium with mature ova.
• Oviducts: Posterior part of ovarioles unite to form oviducts.
• Vagina:
  i) It is a short median duct.
  ii) It opens into genital pouch through female genital pore.
• Spermathecae:
  i) A pair of spermathecae present in 6th segment.
  ii) They store sperms
• Collateral glands:
  i) A pair of collateral glands open into genital pouch.
  ii) They secrete hard egg case called ootheca.
• Genital pouch:
  i) It is formed by 7^th, 8^th and 9^th abdominal sterna it also called brood pouch.
• Gonapophyses:
  i) 3 pairs of gonapophyses are present around female genital pore.
  ii) They help in copulation and guiding the ova into ootheca.