In Greek mythology, Mecionice () or Mecionica was a Boeotian woman from Hyria who consorted with Poseidon and had by this god a son Euphemus, one of the Argonauts.Hesiod, Megalai Ehoiai 253 in Scholia ad Pindar, Pythian Ode 4.35; Tzetzes ad Lycophron, 886Vollmer, Wilhelm. (1874). Wörterbuch der Mythologie. Stuttgart, p. 324. She was the daughter of the giant OrionTzeztes, Chiliades 2.43 or Eurotas.Tzetzes ad Lycophron, 886; Scholia ad Pindar, Pythian Ode 4.15
Otherwise, Euphemus' mother was also called Europe, daughter of Tityos;Pindar, Pythian Ode 4.45; Apollonius of Rhodes, 1.217-222; Hyginus, Fabulae 14; Tzetzes, Chiliades 2.43 Doris (Oris) daughter of EuropaTzetzes ad Lycophron, 886 (please note that most probably the text should be read as Doris, the daughter of "Eurotas" instead of Europa) and Macionassa.John Lemprière, Argonautae
Compare Mecionice with Menodice, another daughter of Orion, who gave birth to Hylas to King Theiodamas of the Dryopians.Hyginus, Fabulae 14 They might be the same woman who mothered the heroes Euphemus and Hylas to Theiodamas - this could be supported by the stories that recall Hylas as an arms-bearer of Heracles who had a half-sister Laonome that married Euphemus.Tzetzes, Chiliades 2.43; ad Lycophron, 886
Notes
References Apollonius Rhodius, Argonautica translated by Robert Cooper Seaton (1853-1915), R. C. Loeb Classical Library Volume 001. London, William Heinemann Ltd, 1912. Online version at the Topos Text Project. Apollonius Rhodius, Argonautica. George W. Mooney. London. Longmans, Green. 1912. Greek text available at the Perseus Digital Library. Hyginus, Fabulae from The Myths of Hyginus translated and edited by Mary Grant. University of Kansas Publications in Humanistic Studies. Online version at the Topos Text Project. . Scholia to Lycophron's Alexandra, marginal notes by Isaak and Ioannis Tzetzes and others from the Greek edition of Eduard Scheer (Weidmann 1881). Online version at the Topos Text Project.. Greek text available on Archive.org Sextus Propertius, Elegies from Charm. Vincent Katz. trans. Los Angeles. Sun & Moon Press. 1995. Online version at the Perseus Digital Library. Latin text available at the same website. Tzetzes, John, Histories or Chiliades unedited translation by Ana Untila (Book I), Gary Berkowitz (II-IV), Konstantinos Ramiotis (V-VI), Vasiliki Dogani (VII-VIII), Jonathan Alexander (IX-X), Muhammad Syarif Fadhlurrahman (XI), and Nikolaos Giallousis (XII-XIII), with translation adjustments by Brady Kiesling affecting about 15 percent of the total . These translations are based on the 1826 Greek edition of Theophilus Kiesslingius. Online version at the Topos Text Project.