An insect helping in pollination is

Options

A. Drosophila
B. Musca nebulo
C. Bombyx mori
D. Apis dorsata.

Answer

To solve the question "An insect helping in pollination is," we will analyze each of the given options to determine which one is known for its role in pollination.

### Step-by-Step Solution:

1. **Understanding Pollination**:
- Pollination is the process of transferring pollen grains from the male anther of a flower to the female stigma. This is crucial for the reproduction of flowering plants.

2. **Analyzing the Options**:
- **Option 1: Drosophila**
- Commonly known as the fruit fly. While they feed on flowers and nectar, they are not considered important pollinators because their larvae primarily feed on fruits and other plant parts, not contributing significantly to pollination.

- **Option 2: Musca Nibolo**
- This is the common Indian housefly. Although it is a well-known insect, it does not play a significant role in pollination. Its feeding habits do not involve transferring pollen.

- **Option 3: Bombax mori**
- Known as the domestic silk moth. While it is economically important for silk production, it is not involved in pollination.

- **Option 4: Apis dorsata**
- This is the giant honeybee. Honeybees are well-known for their role in pollination as they collect nectar from flowers, which they use to produce honey. They are crucial for the pollination of many crops, including cotton, mango, coconut, coffee, and star fruit.

3. **Conclusion**:
- After analyzing all the options, the insect that helps in pollination is **Apis dorsata**.

### Final Answer:
The correct answer is **Apis dorsata**.