1) Masculine given name 2) Shepherd in as you like it 
[insect] Silvius is a genus of fly in the family Tabanidae. It contains the following species: ...[mythology] In Roman mythology, Silvius was either the son of Aeneas and Lavinia or the son of Ascanius. He succeeded Ascanius as King of Alba Longa. According to the former tradition, upon the death of Aeneas, Lavinia is said to have hidden in a forest from the fear that Ascanius would harm the child. He was named after his place of birth,...
Silvius is a shepherd in As You Like It.