Apsĭnes in Harpers Dictionary of Classical Antiquities
（Ἀψίνης). A Greek rhetorician of Gadara, who taught at Athens in the first half of the third century A.D., and wrote a valuable treatise on rhetoric, and also a work on the questions usually discussed in the schools of the rhetoricians. These two treatises are printed in the Rhetores Graeci, by Walz, ix. p. 534 foll.
Apsines in Wikipedia
Apsines of Gadara (fl. 3rd century AD) was a Greek rhetorician. He studied at Smyrna and taught at Athens, gaining such a reputation that he was raised to the consulship by the emperor Maximinus. He was a rival of Fronto of Emesa, and a friend of Philostratus, the author of the Lives of the Sophists, who praises his wonderful memory and accuracy.
Two rhetorical treatises by him are extant: [Greek: technae raetorikae], a handbook of rhetoric greatly interpolated, a considerable portion being taken from the Rhetoric of Longinus; and a smaller work, [Greek: perhi eschaematismenon problaematon], on Propositions maintained figuratively.
Editions by Bake, 1849; Spengel-Hammer in Rhetores Graeci, ii. (1894): see also Hammer, De Apsine Rhetore (1876); Volkmann, Rhetorik der Griechen und Romer (1885).
Two rhetorical treatises by him are extant:
1. His Τέχνη ῥητορική ("Art of Rhetoric") is a greatly interpolated handbook of rhetoric, a considerable portion being taken from the Rhetoric of Longinus and other material from Hermogenes;
an English translation was first published in 1997. Malcolm Heath has argued (APJ 1998) that the work's attribution to Apsines is incorrect.
1. A smaller work, Περὶ ἐσχηματισμήνων προβλημάτων ("on Propositions maintained figuratively").