The headword adjective (on which see generally LSJ s.v.) is in the genitive singular, quoted from somewhere. It might be extracted from the quotation given but is more likely to come from Sophocles, Oedipus Tyrannus 176 (of fire), the scholia to which have the present gloss.
[1] Greek Anthology 6.115.5-6 (generally attributed to Antipater of Sidon), Philip of Macedon dedicates to Herakles the horns and hide of a bull he killed; cf. Gow and Page (vol. I, 27); (vol. II, 71-73); and further excerpts from this epigram at alpha 621, beta 529, delta 361, epsilon 2968, mu 580, and omicron 501. The hunter is generally identified as Philip V of Macedon (238-179 BCE; cf. phi 355 and OCD4 s.v. Philip(3)); cf. Gow and Page (vol. II, 72).