How many abdominal segments are present in cockroach (male & female)?
10 segments
What is special about the 7th sternum in female cockroach?
Boat-shaped
Which sterna form the brood/genital pouch in females?
7th, 8th, and 9th sterna
What does the anterior part of female genital pouch contain?
Female gonopore, spermathecal pores, and collateral glands
Where is the genital pouch located in male cockroach?
Hind end of abdomen
Boundaries of male genital pouch?
Dorsally: 9th & 10th terga; Ventrally: 9th sternum
What structures are present inside male genital pouch?
Dorsal anus, ventral male genital pore, gonapophysis
What are anal styles? Where are they found?
Short, thread-like structures present in males only
Are anal styles present in females?
No
What are anal cerci?
Jointed filamentous structures
Where are anal cerci present?
10th abdominal segment (both sexes)
Genital pouch in female cockroach is also called?
Brood pouch
Which segment forms the major part of female genital pouch?
7th sternum
Spermathecal pores in cockroach are present in?
Female genital pouch
Collateral glands are associated with which structure?
Female genital pouch
Male genital pore is located on which side?
Ventral side
Position of anus in cockroach genital pouch?
Dorsal
Gonapophysis is present in which sex?
Male
Anal styles are attached to which segment?
9th abdominal segment (male)
Anal cerci are attached to which segment?
10th abdominal segment
Key difference between anal styles and anal cerci?
Anal styles: males, 9th segment; Anal cerci: both sexes, 10th segment
Which structure helps in distinguishing male and female cockroach easily?
Presence of anal styles (only in males)
Number of terga involved in male genital pouch?
Two (9th and 10th)
7F 9M 10 BOTH
7 8 9 boat female
9
