Plumose-arista
Guides
Hiatomyia
Deltawings
Hiatomyia is a Holarctic genus of hoverflies (family Syrphidae) characterized by a distinctive plumose arista and shiny black coloration. The genus contains approximately 22 described species, with authorship dating to Shannon (1922). These flies are relatively poorly known compared to many other syrphid genera, with limited observational data available.
Piezura
Piezura is a small genus of small flies in the family Fanniidae, distinguished from other fanniid genera by its plumose arista. The genus contains five described species with distribution primarily in the Holarctic region. Two species, P. pardalina and P. graminicola, occur in Europe. Recent taxonomic revision has clarified species concepts, redescribed all species, and provided illustrated genitalia and identification keys for both sexes.