This special issue of ZooKeys marks the sixth volume in a series on New World macro-moth systematics. Eight authors contributed six manuscripts for this volume, covering taxa in the Erebidae and Noctuidae. Eight new species and two new genera are described from North America, and an additional 55 taxonomic changes are proposed. Since the last update to the check list of North American Noctuoidea was published in 2013, numerous changes and corrections have occurred, all of which are summarized here.
1 Contributions to the systematics of New World macro-moths VI
B. Christian Schmidt, J. Donald Lafontaine
3 A revision of the genus Doryodes Guenée, 1857, with descriptions of six new species (Lepidoptera, Erebidae, Catocalinae, Euclidiini)
J. Donald Lafontaine, J. Bolling Sullivan
31 Revision of the genus Heteranassa Smith, 1899 (Lepidoptera, Erebidae, Omopterini)
Nicholas Homziak, Heidi Hopkins, Kelly B. Miller
51 A new species of Ogdoconta Butler (Lepidoptera, Noctuidae, Condicinae, Condicini) from southeastern Arizona, USA
Lars G. Crabo
57 Revision of the genus Aseptis McDunnough (Lepidoptera, Noctuidae, Noctuinae, Xylenini) with a description of two new genera, Paraseptis and Viridiseptis
Tomas Mustelin, Lars G. Crabo
103 Revision of the Lacinipolia vicina (Grote) complex (Noctuidae, Noctuinae, Eriopygini)
B. Christian Schmidt
127 Additions and corrections to the check list of the Noctuoidea (Insecta, Lepidoptera) of North America north of Mexico III
J. Donald Lafontaine, B. Christian Schmidt