For 10 points, identify this Greek god of travelers and thieves.
His mother also raised Arcas as her own. Among the epithets given to this god are Ctesius, or "protector of property," and Psychopompus.  On the first day he was born, he made a musical instrument from cow intestines and a tortoise shell, and he was also credited with the invention of the flute.  Born in a cave on Mount Cyllene, he fathered a figure with both male and female features.  He aided Perseus by lending him his winged sandals, and he was the owner of the kerykeion, or caduceus.  For 10 points, identify this Greek god of travelers and thieves.
His mother also raised Arcas as her own. Among the epithets given to this god are Ctesius, or "protector of property," and Psychopompus.  
Hermes