In Greek mythology, Apis (Ancient Greek Ἆπις) is an early king of Argos, son of Phoroneus by the nymph Teledice and brother of Niobe. He turns his father's kingship into a tyranny, names the Peloponnese Apia after himself, and dies childless in a conspiracy — after which the land-name and succession pass toward Argus son of Zeus and Niobe.
Adapted from Wikipedia, "Apis (Greek mythology)" · CC BY-SA 4.0
I.Phoroneid tyrant
Apollodorus makes Apis son of Phoroneus and Teledice. During his reign he establishes a tyrannical government and calls the peninsula Apia; he is killed in a conspiracy headed by Thelxion of Sparta and Telchis, and dies without children.
Aeschylus' Suppliants knows another Apis — a Naupactian seer-healer, son of Apollo, who frees Argos from earth-born snakes — and Apollodorus sometimes confounds namesakes. The atlas id apis-phoroneus is the Phoroneid king of the tyrannical Apia strand alone.
II.Homonyms
Do not merge him with Apis king of Sicyon son of Telchis, with Aeschylus' healer, with Apis son of Jason of Pallantium, or with the Egyptian sacred bull.