Swarming is found in

Options

A. Houseflies
B. Mosquitoes
C. Locusts
D. Pyrilla.

Answer

**Step-by-Step Solution:**

1. **Understanding the Term "Swarming":**
- Swarming refers to the behavior of certain species where individuals move together in large or dense groups. This behavior is often seen in certain insects during specific phases of their life cycle.

2. **Analyzing the Options:**
- **Housefly:** Typically, houseflies do not exhibit swarming behavior. They are usually solitary or found in small groups.
- **Mosquitoes:** While mosquitoes can be found in groups, they do not exhibit the same type of swarming behavior as locusts.
- **Locusts:** Locusts are known for their swarming phase, where they change from solitary behavior to gregarious behavior under certain environmental conditions.
- **Pirella:** This term is less common and does not typically refer to an insect known for swarming.

3. **Identifying the Correct Answer:**
- Among the options provided, locusts are the only insects that exhibit true swarming behavior. They can change their behavior and form large groups when conditions are favorable, which is a significant characteristic of their life cycle.

4. **Conclusion:**
- Therefore, the correct answer to the question "Swarming is found in" is **locusts**.

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