Subgenus Apocremnus Fieber, 1858

When considering the names Apocremnus and Mesopsallus as isogenotypic, Kerzhner (1993b: 100) overlooked the fact that the type species of Apocremnus was misidentified by Fieber. This circumstance gives formal reason to refer the case to the International Commission on Zoological Nomenclature for designation of the type species (better betuleti Fallén) under the plenary powers. Accordingly, the name Mesopsallus will be saved for a separate subgenus (see Kerzhner, 1997b: 247).