Question

Furca is present in:

• A. Grub of Coleoptera
• B. Nymph of Hemiptera
• C. Adult Collembola
• D. Caterpillar of Lepidoptera

Hint:

Collembolan abdominal structures to remember:
- Collophore (ventral tube on segment 1) = water absorption/adhesion.
- Tenaculum (on segment 3) = catch.
- Furcula/Furca (on segment 4) = jumping organ.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Primitive, wingless hexapods possess unique specialized abdominal appendages that are not found in higher winged insects.

Step 2: Detailed Explanation:
In the order Collembola (commonly known as springtails), a specialized, forked jumping organ is located on the underside of the fourth abdominal segment.
This forked structure is called the furcula (or furca).
It is held under tension by a catch structure called the tenaculum (on the third segment).
When released, the furcula snaps downward against the ground, catapulting the springtail into the air to escape predators.

Step 3: Final Answer:
The furca is present in Collembola, which corresponds to option (C).