MeaningsnounMydas fly (plural Mydas flies)plural Mydas flies · alternative Midas flyAny fly of the family Mydidae, generally large in size.Descending the scale of hymenopterous life we come to the Pompilus (Fig. 61), which is mimicked by the large black Mydas fly, whose antennae are unusually long and hymenopterous-like.1881, Half Hours with InsectsSynonyms: mydaid, mydidSynonyms & antonymsnounAny fly of the family Mydidae, generally large in size.SimilarmydaidmydidCite this entryAPAMydas fly. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Mydas%20flyCopyMLA“Mydas fly.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Mydas%20fly. Accessed November 4, 2026.CopyChicagoWatkinsX Dictionary, s.v. “Mydas fly,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Mydas%20fly.CopySource: Mydas fly on Wiktionary, CC BY-SA 4.0.