Wing of female of Stenoxenus coomani from Downes and Wirth (1981, fig. 39) [1].

References

1. Downes J.A., Wirth W.W.
   (1981) Ceratopogonidae. in: McAlpine J.F. (Ed.), Manual of Nearctic Diptera. Agriculture Canada, Ottawa, pp. 393-421.