Rounded Rectangle: Continue to Dioxyna picciola page Rounded Rectangle: Recognition : In Ontario, Dioxyna is represented by only one species, Dioxyna picciola (Bigot), a relatively small fly about 3mm long. This genus is very similar to Campiglossa but can be distinguished from it by the longer head, which is longer than high. Other useful diagnostic characters include: proboscis long, geniculate; wing reticulate; chaetotaxy (2 frontal, 2 orbital, and 1-2 scutellar setae, the apical pair small or absent), and the abdominal color pattern (gray with diffuse paired brown spots). 

1 species is known from Ontario:
Dioxyna picciola