Sickle shaped hook is a part of 

Options

A. Left phallomere
B. Right phallomere
C. Ventral phallomere
D. Brood pouch of female

Answer

To determine what the sickle-shaped hook is a part of, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Term "Phallomere":**
- Phallomeres are the external genitalia of male insects, specifically referring to structures in male cockroaches.

2. **Identify the Types of Phallomeres:**
- There are three types of phallomeres: left phallomere, right phallomere, and ventral phallomere.

3. **Analyze the Right Phallomere:**
- The right phallomere is described as having a mid-dorsal position with two chitinous and membranous plates. It also features a broad serrate lobe.

4. **Locate the Sickle-Shaped Hook:**
- The right phallomere has a sickle-shaped hook located at its posterior end.

5. **Examine the Left Phallomere:**
- The left phallomere has a long slender arm and a curved hook, which is not sickle-shaped.

6. **Review the Ventral Phallomere:**
- The ventral phallomere is simpler in structure and does not contain any hook-like structures.

7. **Consider the Brood Pouch:**
- The brood pouch is a structure found in females, formed by the union of certain sterna, and does not contain any hooks.

8. **Conclusion:**
- Based on the analysis, the sickle-shaped hook is part of the right phallomere.

### Final Answer:
The sickle-shaped hook is a part of the **right phallomere**.

---