Periplaneta americana differs from Blatta orientalis in having

Options

A. well developed wings
B. wings absent
C. only first pair of wings developed
D. second pair of wings developed

Answer

To solve the question regarding the differences between Periplaneta americana and Blatta orientalis, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Organisms**:
- Periplaneta americana is commonly known as the American cockroach.
- Blatta orientalis is known as the Oriental cockroach.

2. **Examine the Characteristics**:
- Both species belong to the order Blattodea and are commonly found in various environments.
- They have different physical characteristics, particularly regarding their wings.

3. **Analyze the Wing Structure**:
- Periplaneta americana has well-developed wings that allow it to fly.
- Blatta orientalis, on the other hand, has wings that are either absent or very short and do not aid in flight.

4. **Compare the Lengths**:
- Periplaneta americana typically measures between 30 to 50 mm in length.
- Blatta orientalis measures about 20 to 30 mm in length.

5. **Conclude the Differences**:
- The primary difference in terms of wings is that Periplaneta americana has well-developed wings, while Blatta orientalis has either short wings or wings that are imperceptible.

6. **Select the Correct Option**:
- Based on the analysis, the correct answer to the question is that Periplaneta americana differs from Blatta orientalis in having **well-developed wings**.

### Final Answer:
Periplaneta americana differs from Blatta orientalis in having **well-developed wings**.

---