The soft hairy adhesive pads on the tarsus of the leg of cockroach are termed as :

Options

A. Unges
B. Arolia
C. Plantulae
D. Spurs

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the specific term used to describe the soft, hairy, adhesive pads found on the tarsus of a cockroach's leg.

2. **Analyzing the Options**: The options provided include:
- Anguiss
- Arolia
- Plantulae
- Spurs

3. **Evaluating Each Option**:
- **Anguiss**: This term refers to a claw, which does not describe an adhesive pad. Therefore, this option is incorrect.
- **Arolia**: This term, also known as Arolium in singular form, refers to the soft adhesive pads that provide adhesion on smooth surfaces. They are specifically located on the last tarsomere of the cockroach's leg.
- **Plantulae**: These are small adhesive pads found at the joints of the tarsus but do not specifically refer to the soft hairy pads on the tarsus.
- **Spurs**: Spurs are structures found in the legs of certain insects, such as honey bees, and are not related to the cockroach's tarsus.

4. **Identifying the Correct Answer**: Based on the analysis, the correct term for the soft hairy adhesive pads on the tarsus of the leg of a cockroach is **Arolia**.

5. **Final Answer**: The soft hairy adhesive pads on the tarsus of the leg of a cockroach are termed as **Arolia**.