[1] This entry consists of part of a quoted phrase, as headword, with the quotation completed as the gloss. The phrase is from Synesius of Cyrene's Encomium on Baldness 22-3 (PG 66.1169a), where Synesius says how he felt about becoming bald. He was upset at losing his looks, but reflected on his abiding qualities, among which was that 'In respect of Aphrodite, I was most righteous, and I would rival even Bellerophon in moderation.' The quotation in the Suda replaces 'Aphrodite' with 'moderation', creating a repetition where the original has none.
[2] Anteia (or Stheneboea), wife of Proetus, king of Tiryns, tried to seduce Bellerophon/Bellerophontes (beta 231; OCD4 s.v. [p.228]), but he resisted her; this is the point of the reference to Bellerophontes' moderation, shown by his ability to resist unwanted sexual advances. So the first half of the quotation from Synesius has a similar point to the second, since they both refer to self-controlled behaviour in relation to love and/or sex.