Mosca' is an important character of-

• Volpone is a famous play which is written by Ben Jonson.
• It's important characters:
- Volpone,
- Mosca,
- Celia,
- Voltore,
- Corbaccio,
- Castrone
- Bonario,
- Corvino etc.
Source: Encyclopedia of Britannica and Volpone by Ben Jonson.