Makarchenko E.A., Makarchenko M.A.
Euroasian Entomological Journal 2018; 17(3): 171-178
According to the adult male’s material of N.I. Zelentsov from the northern regions of Russia two new for science species, Chaetocladius (Chaetocladius) shilovae sp.n. from the Ust-Lensky Nature Reserve of the Sakha (Yakutia) and Hydrobaenus nikivani sp.n. from the vicinity of Norilsk of the Krasnoyarsk Territory, are described as well as brief redescriptions with taxonomic remarks of five known species Chaetocladius (C.) glacialis (Lundstrцm), C. (C.) piger (Goetghebuer), C. (C.) suecicus Kieffer, Hydrobaenus conformis (Holmgren) and H. paucisaeta Tuiskunen.