Wing of male of Dixella nova from Peters (1981, fig. xx) Dixidae,
Manual of Nearctic Diptera
, Ottawa, p.329-333, (1981)
[1].

Wing venation of Dixidae. Terminology based on McAlpine Manual of Nearctic Diptera,
, Ottawa, (1981)
[2]. The image was drawn by Giancarlodessi.

Wing of Dixa. From Comstock (fig. 365) The wings of insects,
, Ithaca, N.Y., (1918)
[3].