σέρφος
From LSJ
τοῖς οἰκείοις βουλεύμασιν ἁλίσκεσθαι → hoist by one's own petard, hoist with one's own petard, hoist on one's own petard, hoisted by one's own petard, be hoist with one's own petard
English (LSJ)
ὁ, a small winged insect, prob. a kind of
A gnat or winged ant, Ar.V.352 (ubi v. Sch.), Av.82, 569, Nicopho 1, dub. in Phld. Mort.34: prov., ἔνεστι κἀν μύρμηκι κἀν σέρφῳ χολή 'even the gnat has its sting', Sch.Ar.Av.82, V.352, cf. AP10.49 (Pall.):—written συρφός in Hsch.