释义 |
snow fly noun or snow insect 1. : any of several minute insects that constitute a genus (Boreus) of the order Mecoptera and sometimes appear on the snow in great numbers and in the males have vestigial wings but in the female are wingless 2. : any of several small American stone flies (especially Taeniopteryx nivalis or Capnella pygmaea) often seen on snow 3. : snow gnat |