Wing of Scatella kauaiensis, showing breaks in the costal vein at the insertion points of the humeral crossvein and the subcostal vein.  The specimen imaged was from collection 205192.

 
  Part of: O'Grady P, Pak N (2016) Studies in Hawaiian Diptera III: New Distributional Records for Canacidae and a New Endemic Species of Procanace. Biodiversity Data Journal 4: e5611. https://doi.org/10.3897/BDJ.4.e5611