δαπτής

From LSJ

ὃν οὐ τύπτει λόγος οὐδὲ ῥάβδος → if words don't get through, neither a beating will | if the carrot doesn't work, the stick will not work either | whom words do not strike, neither does the rod

Source

Spanish (DGE)

-οῦ
devorador δαπταὶ ... αἱμοπώται de la picadura de insectos, Lyc.1403, cf. δαπταὶ αἱ μυῖαι Eust.615.10.