The family Erebidae (Lepidoptera: Noctuoidea) is known as one of the largest families in Lepidoptera, comprising about 1,760 genera and more than 24,569 described species worldwide. Within this family, the genus Plecoptera Guenée, 1852, belonging to the subfamily Anobinae, has been documented across the Palaearctic, Oriental, and Afrotropical regions. Here, we introduce the subfamily and genus for the first time in Korea, along with a new species. The diagnosis, description and photographs of adult and genitalia are provided here.

The family Pyralidae comprises over 6,000 species, and is composed of five subfamilies. Among those, the subfamily Phycitinae includes 3 genera, Addyme Walker, 1863, Calguia Walker, 1863, and Coleothrix Ragonot, 1888, with more than 3,300 species worldwide. However, several species of the genera have been erroneously stated and identified due to confusions caused by high morphological similarities. Therefore, we correct those errors through re-examinations of most of the type specimens, along with a diagnosis and table exhibiting the history of those genera. Additionally, we introduce two misidentified Korean pyralids belonging to the genus Addyme.

In the genus Acrobasis Zeller, 1839, there are 14 species known in Korea. In this study, we present Acrobasis rubrizonella (Ragonot, 1893) and Acrobasis subceltifoliella Yamanaka, 2006 from Korea for the first time. We hear provide diagnoses, descriptions, and images of the adults and genitalia of the two species.