Parydra fossarum, male (specimen http://id.luomus.fi/GV.16512)  
  Part of: Kahanp√§√§ J, Zatwarnicki T (2015) Notes on Shore Flies (Diptera: Ephydridae) from Finland and north-western Russia. Biodiversity Data Journal 3: e4701. https://doi.org/10.3897/BDJ.3.e4701