The unglossed headword phrase, in the nominative singular, is perhaps quoted from somewhere but is more probably generated from the quotation given (where it is genitive plural).
[1] For Mt Mainalos see mu 330. The mountain was sacred to Pan, and is associated with wild animals (bears: Apollonius of Rhodes, Argonautica 1.168; lynxes: Callimachus, Hymn to Artemis 89), but the Suda is probably guessing in associating a particular connotation of impulsiveness with the region.
[2] Greek Anthology 6.112.2 (Perses), already at alpha 4564. On this epigram, a dedication to Apollo, see Gow and Page (vol. I, 155-156) and (vol. II, 447-448). The fuller text of this extract at alpha 4564 indicates that the deer heads had enormous horns. The deer must have been stags, not hinds, as the lexicographer has assumed with the feminine headword adjective. However, the feminine is often used generically of deer; see the discussion of antlered hinds at delta 1088 note.