Ecbasus is attested in classical Greek genealogical traditions as a son of Argus, the eponymous king of Argos (himself a son of Zeus and Niobe). In Apollodorus he is named the son of Argus and Evadne (daughter of the river-god Strymon) and is listed as brother to Criasus, Epidaurus, and Piras. A scholion on Euripides records a variant maternal attribution, naming the Oceanid Peitho as his mother. In filial lines he is most commonly given as the father of Agenor, who in turn is father of Argus Panoptes in some accounts; an alternate tradition cited from the historian Charax makes Ecbasus father of Arestor, whose son Pelasgus is said to have settled Arcadia (formerly Pelasgia). These variants reflect competing local or literary genealogies rather than a narrative origin tale.
No physical description of Ecbasus survives in the cited sources. He is treated in the extant material not as a vividly portrayed individual but as a named link in genealogical lists and foundation myths. The absence of iconographic or descriptive detail suggests his role in the tradition is primarily onomastic and documentary: a recorded personal name serving to connect better-attested figures and place-eponyms rather than to provide an individualized portrait.
The surviving sources do not attribute any supernatural powers, particular behaviors, or heroic exploits to Ecbasus himself. His functional "ability" within the mythic corpus is genealogical and onomastic: he connects generations and eponyms (Argus, Agenor, Argus Panoptes, Arestor, Pelasgus), thereby helping to explain descent, territorial claims, and local identities in the Argive and adjoining Peloponnesian traditions. Notable capacities or feats mentioned for descendants (for example Argus Panoptes's many eyes) are expressly properties of those descendants and are not ascribed to Ecbasus.

Argus Panoptes
Argus Panoptes is a many‑eyed giant of Greek myth famed for perpetual vigilance in the service of the goddess Hera. Described as an unwearied guardian of sacred charge (notably Io), he is famed for his all‑seeing eyes and eventual death at Hermes' hands.

Pelasgus
Pelasgus (Πελασγός) is a mythic ancestral and eponymous founder figure in ancient Greek tradition credited in various local accounts with founding cities, teaching agriculture, receiving Demeter, and giving his name to the Pelasgians and regions such as Pelasgiotis. He appears across competing regional genealogies (Argive, Arcadian, Thessalian) rather than as a standardized supernatural being.
Community Record
- [1]Apollodorus, The Library (summary attestations). Apollodorus, Bibliotheca (as summarized in modern reference collections): Ecbasus named son of Argus and Evadne; brother of Criasus, Epidaurus, and Piras; father of Agenor.literary
- [2]Scholion on Euripides (variant maternal attribution). Scholion on Euripides (as cited in modern summaries): gives Peitho the Oceanid as Ecbasus's mother (variant tradition).literary
- [3]Charax (as cited in secondary summaries). Charax (historian), cited in summaries: reports an alternate descent in which Ecbasus fathers Arestor, whose son Pelasgus settled Arcadia (Pelagia/Pelasgia).other
- [4]Reference summaries and compilations. Modern summaries and reference works (Wikipedia, Pantheon, ToposText, myths.uvic.ca) that collate the variant genealogical attestations for Ecbasus.wiki
- [5]Hera – Mythoi Koinoi (on Argus Panoptes). Discussion of Argus Panoptes (noting his many-eyed description) used here to contextualize descendants linked to Ecbasus; the eyes and guard of Io are properties of Argus Panoptes and not Ecbasus.literary
