Mosca' character is found in the play -

Ben Jonson (1572-1637):
English Stuart dramatist, lyric poet, and literary critic.

Volpone (1605) is a famous play written by Ben Jonson.
Its important character are
- Volpone,
- Mosca,
- Celia,
- Bonario,
- Corvino.

His other major plays are-
- Every Man in His Humour (1598),
- The Silent Woman (1609),
- The Alchemist (1610),
- Bartholomew Fair (1614).

Source: Encyclopedia Britannica.