Cells of cockroach that secrete wax are

Options

A. trichogen
B. trophocytes
C. myocytes
D. oenocytes

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the specific type of cells in cockroaches that are responsible for secreting wax.

2. **Analyzing the Options**:
- **Trichosome**: These are specialized cells in the epidermis that form movable bristles. They do not secrete wax.
- **Trophocytes**: These cells are involved in storing reserve food for the organism and do not play a role in wax secretion.
- **Myocytes**: These are muscle cells and are not related to wax secretion.
- **Oinocytes**: These are specialized cells in insects that are involved in lipid processing and detoxification. They are closely associated with the insect epidermis and are responsible for synthesizing and secreting wax.

3. **Identifying the Correct Answer**: Based on the analysis, the correct answer is **oinocytes** (option D), as they are specifically known for their role in wax secretion in cockroaches.

4. **Conclusion**: The cells of cockroaches that secrete wax are called oinocytes.