Yeah, for the legs I agree, but the contrast on the wings is stronger than with both risi and seticornis. What else, you see that on my picture there is a big difference black-white on wings but is not a very distinctive difference on legs like on this photo for risi http://www.fugleognatur.dk/gallery.asp?mode=ShowLarge&ID=59090, and on your link as well, it shows bigger difference https://www.avozetto.com/en/entomology_stoneflies, according to that is closer to seticornis http://lorrainenature.voila.net/photos/imgcol/imgcol_26/_00015.htm
Hmm, ehm, "yes"...
http://lorrainenature.voila.net/photos/imgcol/imgcol_26/_00015.htm
Note the bicolored legs and the pattern on the wings. But that is what my eyes see... And Taeniopteryx are much rarer finds.
Can't tell you if it is Brachyptera risi or Brachyptera seticornis. Maybe also depending on your area and altitude.
http://plecoptera.speciesfile.org/Common/Basic/Taxa.aspx?TaxonNameID=1155360
http://plecoptera.speciesfile.org/Common/Basic/Taxa.aspx?TaxonNameID=2167
Could also be another Brachyptera sp.
http://plecoptera.speciesfile.org/Common/Basic/Taxa.aspx?TaxonNameID=1155334
http://lorrainenature.voila.net/photos/imgcol/imgcol_26/_00015.htm
http://www.arthropods.de/insecta/plecoptera/taeniopterygidae/brachypteraSeticornis01.htm
http://www.cscf.ch/cscf/page-20334_de_CH.html
https://www.avozetto.com/en/entomology_stoneflies
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