Which of the following statements is incorrect?

1. Cockroaches exhibit mosaic vision with less sensitivity and more resolution

2. A mushroom-shaped gland is present in the 6^th-7^th abdominal segments of male

3. A pair of spermatheca is present in the 6^th segment of female cockroach

4. Female cockroach possesses sixteen ovarioles in the ovaries

Which one of the followings statements is true for cockroach?