Question

The type of hind wings found in beetles is:

• A. Elytra
• B. Hemielytra
• C. Tegmina
• D. Membranous

Hint:

In Coleoptera (beetles): - Forewings: modified into hard, protective covers (Elytra). - Hind wings: thin, transparent wings used for flight (Membranous).

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Beetles belong to the insect order Coleoptera, which is characterized by highly specialized wing modifications.
These adaptations protect the insect while maintaining its ability to fly.

Step 2: Detailed Explanation:
Beetles possess two pairs of wings with distinct structures:
- Forewings (Elytra): The forewings are modified into hard, heavily chitinized, protective covers called elytra.
These wings do not flap during flight; instead, they remain extended to provide stability while protecting the soft abdomen and hind wings when the beetle is at rest.
- Hind wings (Membranous): Underneath the protective elytra lies the second pair of wings.
These wings are thin, flexible, transparent, and membranous.
They are the primary wings used for active flight and are folded complexly beneath the elytra when the beetle is on the ground.
Tegmina are the leathery forewings of Orthoptera, and hemielytra are the partially hardened forewings of Hemiptera.
Therefore, the hind wings of beetles are membranous.

Step 3: Final Answer
The correct option is (D).