Question

Stylus theory of origin of wings was given by

• A. A. Miller
• B. John Comstock and George Needham
• C. Vincent Wigglesworth
• D. A.D. Imms

Hint:

Wigglesworth is the key name for insect physiology and theories regarding wing and tracheal evolution.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
The evolutionary origin of insect wings is a major topic in biology. Since wings appeared suddenly in the fossil record with no clear intermediate forms, several theories have been proposed.
The primary theories are the Paranotal Theory (wings from thoracic expansions) and the Exit/Stylus Theory (wings from modified abdominal/leg appendages).
Detailed Explanation:
The Stylus Theory (also referred to as the Gill Theory or Paranotal-Gill Theory in some contexts) suggests that wings evolved from pre-existing movable structures such as the styli (small leg-like appendages) or the tracheal gills of aquatic ancestors.
Sir Vincent Brian Wigglesworth, a renowned British entomologist often called the "father of insect physiology," was a strong proponent of the idea that wings had an aquatic origin.
He proposed that wings evolved from the movable tracheal gills found in the nymphs of primitive aquatic insects.
This theory is supported by the fact that both wings and gills are supplied by similar tracheal and muscular systems and are regulated by similar developmental genes (like the "vestigial" gene).
John Comstock and George Needham are famous for the Comstock-Needham system of wing venation.
A.D. Imms is known for his monumental contributions to insect taxonomy and general biology.

Step 2: Final Answer:
The Stylus (Gill) theory of wing origin was primarily advanced by Vincent Wigglesworth.