Question

In butterfly, long coiled siphoning tube is formed from____________.

• A. Labrum
• B. Maxilla
• C. Mandibles
• D. Labium

Answer 1

Answer: (B)

• The mouthparts of butterfly and moths are siphoning and sucking type.
• These mouthparts are best suited to draw nectar from the flowers.
• Siphoning-sucking mouthparts are mostly limited to adult butterflies and moths (Order Lepidoptera).
• The only well-developed structures are galea of the first maxillae.
• These are greatly elongated semi-tube like structures. When these two galeae are applied and locked together along the length they form a long tubular proboscis.
• The locking of galeae is done with the help of pegs and sockets.
• When not in use the proboscis is coiled like a watch spring.

So, the correct answer is 'B'.