HiatomyiaHiatomyia is a Holarctic genus of hoverflies that are shiny black with a plumose arista.SpeciesHiatomyia canadensis Hiatomyia chionthrix Hull & fluke 1950 Hiatomyia chrysothrix Hiatomyia coriacea Hiatomyia cyanea Hiatomyia cyanescens Hiatomyia cyascens Hiatomyia gemini Hiatomyia hecate Hiatomyia hyacintha Hiatomyia idahoa Hiatomyia nigrocyanea Hiatomyia niveifrons Hiatomyia nyctichroma Hiatomyia olivia Hiatomyia plumosa Hiatomyia plutonia Hiatomyia rubroflava Hiatomyia signatiseta Hiatomyia tessa Hiatomyia townsendi Hiatomyia willistoni