The Lupercus reference article from the English Wikipedia on 24-Apr-2004
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Lupercus

In Roman mythology, Lupercus was a name for Faunus as well as another god.

Lupercus was the god of shepherds. His festival (along with Faunus), celebrated on the anniversary of the founding of his temple, February 15, was called the Lupercalia. His priests (Luperci) wore goat-skins and hit onlookers with goat-skin belts. Lupercus was associated with the cave where Romulus and Remus were suckled by a she-wolf. He was associated with goats and dogs.