Definition of mydas fly in US English:

mydas fly

(also Midas fly, Mydas fly)

noun

  • Any of various large insectivorous dipteran flies constituting the family Mydaidae (or Mydidae), which are hairless and have clubbed antennae.

Origin

Late 19th century; earliest use found in John Comstock (1849–1931). From scientific Latin Mydas, genus name + fly.

Pronunciation

mydas fly

/ˈmʌɪdəs flʌɪ/