Apposition image is fomred in the eye of insect

Options

A. Aedes
B. Culex
C. Musca
D. Periplaneta.

Explanation

To solve the question regarding which insect forms an apposition image in its eye, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Apposition Image**:
- An apposition image is formed in the eyes of certain insects when they are exposed to high-intensity light. This type of image formation is typical in diurnal (day-active) insects.

2. **Analyzing the Options**:
- **Aedes**: This genus includes mosquitoes that are primarily active at night (nocturnal). Therefore, they do not form apposition images.
- **Culex**: Similar to Aedes, Culex mosquitoes are also nocturnal and typically form superposition images rather than apposition images.
- **Musca**: This genus refers to houseflies, which are diurnal insects. They are active during the day and form apposition images due to the sufficient intensity of light they encounter.
- **Periplaneta**: This refers to cockroaches, which are nocturnal and, like the other nocturnal insects, form superposition images.

3. **Identifying the Correct Answer**:
- Based on the analysis, the only insect from the options that forms an apposition image is **Musca** (housefly), as it is active during the day and can form images under high light intensity.

### Conclusion:
The correct answer is **Musca**.

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