Boreal Olethreutini 1. (Lepidoptera: Tortricidae): New Synonymies and Holarctic Records
We examined specimens of selected boreal palaearctic and nearctic taxa of Tortricidae to ascertain whether they might be holarctic conspecifics. Our findings confirm one putative synonymy: Tia enervana (Erschoff, 1877) = Argyroploce vulgana McDunnough, 1922, support four new synonymies: Olethreutes aquilonanus (Karvonen, 1932) = O. kononenkoi Kuznetsov, 1991, O. heinrichanus (McDunnough, 1927) = O. hyperboreanus (Karvonen, 1932), O. turfosanus (Herrich-Schaffer, 1851) = O. intermistanus (Clemens, 1865), O. septentrionanus (Curtis, 1835) = O. schaefferanus (Herrich-Schiiffer, 1851) and resurrect one name from synonymy: the nearctic O. kennethanus McDunnough, 1941 is not conspecific with the palaearctic O. obsoletanus (Zetterstedt, 1840). Through synonymies and records, seven species are new for the Nearctic, and ten are considered holarctic. These results increase the percentage of holarctic Beringian tortricid species from 48 to 61.