Which one of the following genus of insects prefer to breed in clean water and their larvae lie parallel to the surface of water

Options

A. (a) Anopheles
B. (b) Culex
C. (c) Aedes
D. (d) Phlebotomus

Answer

To solve the question regarding which genus of insects prefers to breed in clean water and has larvae that lie parallel to the surface of the water, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Options**: We need to consider the different genera of insects provided in the options. The main focus is on mosquitoes, as they are commonly known for breeding in various water conditions.

2. **Analyze Each Genus**:
- **Anopheles**: This genus is known to breed in clean water sources such as freshwater pools, irrigation areas, and forest pools. Their larvae are typically found lying parallel to the water surface.
- **Culex**: This genus prefers to breed in dirty or polluted water. Thus, it does not meet the criteria of breeding in clean water.
- **Aedes**: Aedes mosquitoes breed in stagnant water, which is not necessarily clean. They are often found in containers or areas where water is not flowing.
- **Flebotomus**: This genus breeds in dark places and caves, not specifically in clean water.

3. **Determine the Correct Answer**: Based on the analysis, Anopheles is the only genus that prefers to breed in clean water and has larvae that lie parallel to the surface of the water.

4. **Conclusion**: Therefore, the correct answer to the question is **Anopheles**.