International Commission on Zoological Nomenclature:
OPINIONS and DIRECTIONS

taxa names:

Ek

Ekkoptogaster Herbst 1793, Der Käfer, Th. V: 81, 103, 122, 127, 128 (a junior objective synonym of Scolytus Geoffroy 1762). Opinion 683 

Elachista Kollar 1832, Beiträge zur Landeskunde Oesterreich’s unter der Enns, 2: 98, and all uses of the name prior to the publication of Elachista Treitschke 1833 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Lepidoptera). Opinion 1557