Silver-Faced (argyros, ops)
ARGIOPE was a Naiad-nymph of the town of Eleusis (southern Greece). She was the mother by Poseidon of Kerkyon (Cercyon), a brutal Eleusinian king slain by the hero Theseus.
Argiope's name means "Silver-Faced" which suggests she was the nymph of a sparkling spring or brook.
Perhaps a daughter of the River KEPHISOS
KERKYON (by Brankhos) (Apollodorus E1.3)
CLASSICAL LITERATURE QUOTES
Pseudo-Apollodorus, Bibliotheca E1. 3 (trans. Aldrich) (Greek mythographer C2nd A.D.) :
"[Theseus] slew Kerkyon (Cercyon), son of Brankhos (Branchus) and a Nymphe named Argiope [of Eleusis]."
- Apollodorus, The Library - Greek Mythography C2nd A.D.