ἐμπίς
From LSJ
Ἐχθροὺς ἀμύνου μὴ ‘πὶ τῇ σαυτοῦ βλάβῃ → Ulciscere hostem, non tamen damno tuo → Die Feinde wehre ohne Schaden für dich ab
English (LSJ)
ίδος, ἡ,
A mosquito, gnat, Ar.Nu.157; ἐμπίδες ὀξύστομοι Id.Av. 245, cf. Arist.HA490a21, Porph.Abst.3.20; the gnat Chironomus, Arist.HA551b27; prob. may-fly, ib.601a4. 2 larva of the οἶστρος, ib.487b5 (v.l.).