Question

Forewing modified as Pseudohaltere in order:

• A. Diptera
• B. Mecoptera
• C. Strepsiptera
• D. Thyasanoptera

Hint:

Be careful with the distinction:
- Diptera = Hind wings modified into Halteres.
- Strepsiptera = Forewings modified into Pseudohalteres.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Wing modifications serve diverse purposes, ranging from propulsion to sensory-gyroscope systems that stabilize flight.

Step 2: Detailed Explanation:
In the order Strepsiptera (twisted-wing parasites), males exhibit highly specialized wing dimorphism:
- The hind wings are large, fan-like, and used for active flight.
- The forewings are reduced to small, club-shaped structures called pseudohalteres (false halteres).
These structures function gyroscopically during flight, similar to the true halteres of Diptera (which are modified hind wings).

Step 3: Final Answer:
The order with forewings modified as pseudohalteres is Strepsiptera, which corresponds to option (C).