Taxonomic study of the genus Spilonota Stephens (Lepidoptera: Tortricidae: Olethreutinae: Eucosmini) with descriptions of two new species in Korea.

A taxonomic study of Spilonota Stephens, 1834, in Korea is conducted, and S. prognathana (Snellen, 1883) which had previously been merged with S. albicana (Motschulsky, 1866) is separated again. Additionally, as a result of research based on materials from Incheon National University two new species; S. samseong Choi, Bae & Nasu, S. laticucullusa Choi, Bae & Nasu proposed from Korea. The study provides brief descriptions of Spilonota species in Korea, with illustrations of the adult and genital morphology. Identification key for the known species reported from Korea is included.

Two new species of the genus Stericta Lederer (Lepidoptera, Pyralidae, Epipaschiinae) from Laos and Cambodia.

Two new species, Stericta jaeshini Kim & Bae, sp. nov. and S. atroaurantiaca Kim & Bae, sp. nov. are described from Southeast Asia. About 50 species of the genus Stericta have been recorded from Southeast Asia, but it has not been recorded to occur in Laos and Cambodia previously. We record the presence of this genus in these two countries for the first time in this study. Illustrations of adults and genitalia of examined species are provided. v.

Five new species of the Pholcusphungiformes species group (Araneae, Pholcidae) from South Korea.

Five new spider species of the genus Pholcus Walckenaer, 1805, P.duryunsp. nov., P.hwaamsp. nov., P.mohangsp. nov., P.woraksp. nov., and P.yangpyeongsp. nov., belonging to the P.phungiformes group in the family Pholcidae C. L. Koch, 1850, are newly described from South Korea. These new species were collected from mixed forests in mountainous, hilly, and coastal terrains. This study provides the diagnoses, detailed descriptions, distribution maps, and taxonomic photographs of these new species.

Two new species and a new record of the genus Meganola Dyar, 1898 (Lepidoptera, Nolidae, Nolinae) from Laos.

The paper contains the description of two new Meganola Dyar, 1898 species (M. canaliculata Cha Bae, sp. n. and M. phuana Cha Bae, sp. n.) and a new record of M. tetrodon (de Joannis, 1928) from Laos. Color figures of adults and genitalia of the examined species are provided.

Two new species and four new records of Diduga (Lepidoptera, Erebidae, Arctiinae) from Laos.

Two new species, Diduga hastata sp. nov. and Diduga mucronata sp. nov. are described from Laos along with four newly recorded species, D. annulata Hampson, 1900, D. amoenusa Bucsek, 2012, D. allodubatolovi Bayarsaikhan, Li Bae, 2020 and D. luteogibbosa Bayarsaikhan, Li Bae, 2020. Illustrations of adults and genitalia of examined species from Laos are provided.

Exoasota pursatensis Ko amp; Bae, new genus and species of the Spilomelinae (Lepidoptera: Pyraloidea: Crambidae) from Indochina.

Exoasota pursatensis Ko Bae, gen. nov. sp. nov. (Lepidoptera: Pyraloidea: Crambidae) is described from Indochina (Cambodia, Thailand, Vietnam, Myanmar). The new genus Exoasota is assigned to Spilomelinae on the basis of the morphological evidence, including the tympanal organs and genitalia. In addition, we provide comparisons with genera Epiparbattia Caradja (Crambidae, Pyraustinae) and Asota Hübner (Erebidae, Aganainae). Illustrations of adults, genitalia, and tympanal characters are provided.

A new species of the genus Parapachymorpha Brunner von Wattenwyl, 1893 (Phasmida, Phasmatidae, Clitumninae) from Laos.

Parapachymorpha is one of eight genera within the tribe Medaurini of subfamily Clitumninae (Phasmatidae). It was established by Brunner von Wattenwyl (1893), with the type species Parapachymorpha nigra by subsequent designation of Kirby (1904), from Myanmar. Species of this genus are widely distributed in oriental tropics (Laos, China, Thailand, Myanmar, Vietnam and Cambodia), with only 11 known species in the world (Brock et al. 2018, Ho 2017). Species of the genus Parapachymorpha can be recognized by following characters (Brunner von Wattenwyl 1893;1907, Henmemann Conle 2008, Ho 2017): 1) body robust in female and slender in male with long leg in relation to the length; 2) body surface of female granulose or spinose; 3) mesonotum of female more and less expanded posteriorly; 4) abdominal tergites lacking expanded prostero-lateral angles in both sexes; 5) laminal supraanalis undeveloped in female; 6) semi-tergite of male irregularly rectangular, with an additional finger--like ventro-apical appendix on the lower margin and reduced or absent; 7) egg capsule oval to oblong and covered with a raised net-like structure in lateral view; 8) micropylar plate oval; 9) operculum concave or convex. In the present study, we describe additional species, Parapachymorpha minuta sp. nov. from Laos, with photographs of both sexes of adults and egg.

Review of the genus Meganola Dyar, 1898 (Lepidoptera: Nolidae, Nolinae) from Korea, with the description of a new species.

The genus Meganola Dyar, 1898 is reviewed for Korea, with 12 species, including the new species, Meganola parki Oh Cha, sp. n. Illustrations of adults and genitalia of all the Korean species are provided, with a key to species of Meganola based on the external morphology and male genitalia. All known host plants are provided, some of them newly recorded.