Wing of female of Heterocheila hannai from Steyskal (1981, fig. 4) Dryomyzidae,
Manual of Nearctic Diptera
, Ottawa, p.923-926, (1981)
[2].

Wing of female of Dryomyza anilis from Steyskal (1981, fig. 3) Dryomyzidae,
Manual of Nearctic Diptera
, Ottawa, p.923-926, (1981)
[2].