Insects having piercing and sucking mouth parts are

Options

A. Butterflies
B. Aphids
C. Houseflies
D. Fruitflies.

Answer

To solve the question "Insects having piercing and sucking mouth parts are," we will analyze each of the given options one by one.

### Step-by-Step Solution:

1. **Identify the Options**: The options provided are:
- A) Butterflies
- B) Aphids
- C) Houseflies
- D) Fruit flies

2. **Analyze Option A - Butterflies**:
- Butterflies have siphoning mouthparts, which are adapted for feeding on nectar from flowers. They do not have piercing and sucking mouthparts.

3. **Analyze Option B - Aphids**:
- Aphids are known for their piercing and sucking mouthparts. They use these mouthparts to extract sap from plants, making them a prime example of insects with this type of mouthpart.

4. **Analyze Option C - Houseflies**:
- Houseflies possess sponging mouthparts. They do not pierce or suck; instead, they sponge up liquids.

5. **Analyze Option D - Fruit Flies**:
- Similar to houseflies, fruit flies also have sponging mouthparts. They feed by sponging up liquids rather than piercing and sucking.

6. **Conclusion**:
- After analyzing all the options, the only insect that has piercing and sucking mouthparts is **B) Aphids**.

### Final Answer:
The correct answer is **B) Aphids**.

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