New data on the mayflies (Ephemeroptera) of North-Western Yakutia Author Yanygina, L. V. Author Potapova, N. K. text Far Eastern Entomologist 2022 2022-01-09 446 13 23 http://dx.doi.org/10.25221/fee.446.3 journal article 10.25221/fee.446.3 2713-2196 Ecdyonurus ( Atopopus ) aurarius Kluge, 1983 REMARKS. In 1985–1987, this species was recorded from Billyakh and Ebelyakh rivers ( Kirillov et al ., 2007 ).