The generic name of oriental cockroach is 

Options

A. Blatta
B. Blatella
C. Periplaneta
D. Pheretima

Answer

To determine the generic name of the Oriental cockroach, we can follow these steps:

1. **Identify the Options**: The options provided are Blata, Blatela, Periplanata, and Ferritima.

2. **Analyze Each Option**:
- **Ferritima**: This term is associated with earthworms, so it cannot be the correct answer since we are looking for the generic name of a cockroach.
- **Blatela**: This is a genus name but is associated with a different type of cockroach, specifically the Cosmopolitan or wild cockroach, so it is not the correct answer for the Oriental cockroach.
- **Periplanata**: This refers to the American cockroach (Periplanata americana), which is also not the correct answer.
- **Blata**: This genus name is often confused with Blatela, but it is also not the correct generic name for the Oriental cockroach.

3. **Correct Answer**: The correct generic name for the Oriental cockroach is **Blatta**. The full scientific name is **Blatta orientalis**.

4. **Conclusion**: Based on the analysis, the generic name of the Oriental cockroach is **Blatta**.